Optical image capturing system

ABSTRACT

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention generally relates to an optical system, and moreparticularly to a compact optical image capturing system for anelectronic device.

2. Description of Related Art

In recent years, with the rise of portable electronic devices havingcamera functionalities, the demand for an optical image capturing systemis raised gradually. The image sensing device of the ordinaryphotographing camera is commonly selected from charge coupled device(CCD) or complementary metal-oxide semiconductor sensor (CMOS Sensor).Also, as advanced semiconductor manufacturing technology enables theminimization of the pixel size of the image sensing device, thedevelopment of the optical image capturing system towards the field ofhigh pixels. Therefore, the requirement for high imaging quality israpidly raised.

The conventional optical system of the portable electronic deviceusually has five or sixth lenses. However, the optical system is askedto take pictures in a dark environment, in other words, the opticalsystem is asked to have a large aperture. The conventional opticalsystem provides high optical performance as required.

It is an important issue to increase the quantity of light entering thelens. Also, the modern lens is also asked to have several characters,including high image quality.

BRIEF SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which usecombination of refractive powers, convex and concave surfaces ofseven-piece optical lenses (the convex or concave surface in thedisclosure denotes the geometrical shape of an image-side surface or anobject-side surface of each lens on an optical axis) to increase thequantity of incoming light of the optical image capturing system, and toimprove imaging quality for image formation, so as to be applied tominimized electronic products.

The term and its definition to the lens parameter in the embodiment ofthe present are shown as below for further reference.

The Lens Parameter Related to a Length or a Height in the Lens:

A maximum height for image formation of the optical image capturingsystem is denoted by HOI. A height of the optical image capturing systemis denoted by HOS. A distance from the object-side surface of the firstlens to the image-side surface of the seventh lens is denoted by InTL. Adistance from the first lens to the second lens is denoted by IN12(instance). A central thickness of the first lens of the optical imagecapturing system on the optical axis is denoted by TP1 (instance).

The Lens Parameter Related to a Material in the Lens:

An Abbe number of the first lens in the optical image capturing systemis denoted by NA1 (instance). A refractive index of the first lens isdenoted by Nd1 (instance).

The Lens Parameter Related to a View Angle of the Lens:

A view angle is denoted by AF. Half of the view angle is denoted by HAF.A major light angle is denoted by MRA.

The Lens Parameter Related to Exit/Entrance Pupil in the Lens:

An entrance pupil diameter of the optical image capturing system isdenoted by HEP. For any surface of any lens, a maximum effective halfdiameter (EHD) is a perpendicular distance between an optical axis and acrossing point on the surface where the incident light with a maximumviewing angle of the system passing the very edge of the entrance pupil.For example, the maximum effective half diameter of the object-sidesurface of the first lens is denoted by EHD11, the maximum effectivehalf diameter of the image-side surface of the first lens is denoted byEHD12, the maximum effective half diameter of the object-side surface ofthe second lens is denoted by EHD21, the maximum effective half diameterof the image-side surface of the second lens is denoted by EHD22, and soon.

The Lens Parameter Related to a Depth of the Lens Shape:

A distance in parallel with the optical axis from a point where theoptical axis passes through to an end point of the maximum effectivesemi diameter on the object-side surface of the seventh lens is denotedby InRS71 (the depth of the maximum effective semi diameter). A distancein parallel with the optical axis from a point where the optical axispasses through to an end point of the maximum effective semi diameter onthe image-side surface of the seventh lens is denoted by InRS72 (thedepth of the maximum effective semi diameter). The depth of the maximumeffective semi diameter (sinkage) on the object-side surface or theimage-side surface of any other lens is denoted in the same manner.

The Lens Parameter Related to the Lens Shape:

A critical point C is a tangent point on a surface of a specific lens,and the tangent point is tangent to a plane perpendicular to the opticalaxis and the tangent point cannot be a crossover point on the opticalaxis. Following the above description, a distance perpendicular to theoptical axis between a critical point C51 on the object-side surface ofthe fifth lens and the optical axis is HVT51 (instance), and a distanceperpendicular to the optical axis between a critical point C52 on theimage-side surface of the fifth lens and the optical axis is HVT52(instance). A distance perpendicular to the optical axis between acritical point C61 on the object-side surface of the sixth lens and theoptical axis is HVT61 (instance), and a distance perpendicular to theoptical axis between a critical point C62 on the image-side surface ofthe sixth lens and the optical axis is HVT62 (instance). A distanceperpendicular to the optical axis between a critical point on theobject-side or image-side surface of other lenses, such as the seventhlens, the optical axis is denoted in the same manner.

The object-side surface of the seventh lens has one inflection pointIF711 which is nearest to the optical axis, and the sinkage value of theinflection point IF711 is denoted by SGI711 (instance). A distanceperpendicular to the optical axis between the inflection point IF711 andthe optical axis is HIF711 (instance). The image-side surface of theseventh lens has one inflection point IF721 which is nearest to theoptical axis, and the sinkage value of the inflection point IF721 isdenoted by SGI721 (instance). A distance perpendicular to the opticalaxis between the inflection point IF721 and the optical axis is HIF721(instance).

The object-side surface of the seventh lens has one inflection pointIF712 which is the second nearest to the optical axis, and the sinkagevalue of the inflection point IF712 is denoted by SGI712 (instance). Adistance perpendicular to the optical axis between the inflection pointIF712 and the optical axis is HIF712 (instance). The image-side surfaceof the seventh lens has one inflection point IF722 which is the secondnearest to the optical axis, and the sinkage value of the inflectionpoint IF722 is denoted by SGI722 (instance). A distance perpendicular tothe optical axis between the inflection point IF722 and the optical axisis HIF722 (instance).

The object-side surface of the seventh lens has one inflection pointIF713 which is the third nearest to the optical axis, and the sinkagevalue of the inflection point IF713 is denoted by SGI713 (instance). Adistance perpendicular to the optical axis between the inflection pointIF713 and the optical axis is HIF713 (instance). The image-side surfaceof the seventh lens has one inflection point IF723 which is the thirdnearest to the optical axis, and the sinkage value of the inflectionpoint IF723 is denoted by SGI723 (instance). A distance perpendicular tothe optical axis between the inflection point IF723 and the optical axisis HIF723 (instance).

The object-side surface of the seventh lens has one inflection pointIF714 which is the fourth nearest to the optical axis, and the sinkagevalue of the inflection point IF714 is denoted by SGI714 (instance). Adistance perpendicular to the optical axis between the inflection pointIF714 and the optical axis is HIF714 (instance). The image-side surfaceof the seventh lens has one inflection point IF724 which is the fourthnearest to the optical axis, and the sinkage value of the inflectionpoint IF724 is denoted by SGI724 (instance). A distance perpendicular tothe optical axis between the inflection point IF724 and the optical axisis HIF724 (instance).

An inflection point, a distance perpendicular to the optical axisbetween the inflection point and the optical axis, and a sinkage valuethereof on the object-side surface or image-side surface of other lensesis denoted in the same manner.

The Lens Parameter Related to an Aberration:

Optical distortion for image formation in the optical image capturingsystem is denoted by ODT. TV distortion for image formation in theoptical image capturing system is denoted by TDT. Further, the range ofthe aberration offset for the view of image formation may be limited to50%-100% field. An offset of the spherical aberration is denoted by DFS.An offset of the coma aberration is denoted by DFC.

A modulation transfer function (MTF) graph of an optical image capturingsystem is used to test and evaluate the contrast and sharpness of thegenerated images. The vertical axis of the coordinate system of the MTFgraph represents the contrast transfer rate, of which the value isbetween 0 and 1, and the horizontal axis of the coordinate systemrepresents the spatial frequency, of which the unit is cycles/mm or 1p/mm, i.e., line pairs per millimeter. Theoretically, a perfect opticalimage capturing system can present all detailed contrast and every lineof an object in an image. However, the contrast transfer rate of apractical optical image capturing system along a vertical axis thereofwould be less than 1. In addition, peripheral areas in an image wouldhave a poorer realistic effect than a center area thereof has. Forvisible spectrum, the values of MTF in the spatial frequency of 55cycles/mm at the optical axis, 0.3 field of view, and 0.7 field of viewon an image plane are respectively denoted by MTFE0, MTFE3, and MTFE7;the values of MTF in the spatial frequency of 110 cycles/mm at theoptical axis, 0.3 field of view, and 0.7 field of view on an image planeare respectively denoted by MTFQ0, MTFQ3, and MTFQ7; the values of MTFin the spatial frequency of 220 cycles/mm at the optical axis, 0.3 fieldof view, and 0.7 field of view on an image plane are respectivelydenoted by MTFH0, MTFH3, and MTFH7; the values of MTF in the spatialfrequency of 440 cycles/mm at the optical axis, 0.3 field of view, and0.7 field of view on the image plane are respectively denoted by MTF0,MTF3, and MTF7. The three aforementioned fields of view respectivelyrepresent the center, the inner field of view, and the outer field ofview of a lens, and, therefore, can be used to evaluate the performanceof an optical image capturing system. If the optical image capturingsystem provided in the present invention corresponds to photosensitivecomponents which provide pixels having a size no large than 1.12micrometer, a quarter of the spatial frequency, a half of the spatialfrequency (half frequency), and the full spatial frequency (fullfrequency) of the MTF diagram are respectively at least 110 cycles/mm,220 cycles/mm and 440 cycles/mm.

If an optical image capturing system is required to be able also toimage for infrared spectrum, e.g., to be used in low-light environments,then the optical image capturing system should be workable inwavelengths of 850 nm or 800 nm. Since the main function for an opticalimage capturing system used in low-light environment is to distinguishthe shape of objects by light and shade, which does not require highresolution, it is appropriate to only use spatial frequency less than110 cycles/mm for evaluating the performance of optical image capturingsystem in the infrared spectrum. When the aforementioned wavelength of850 nm focuses on the image plane, the contrast transfer rates (i.e.,the values of MTF) in spatial frequency of 55 cycles/mm at the opticalaxis, 0.3 field of view, and 0.7 field of view on an image plane arerespectively denoted by MTFI0, MTFI3, and MTFI7. However, infraredwavelengths of 850 nm or 800 nm are far away from the wavelengths ofvisible light; it would be difficult to design an optical imagecapturing system capable of focusing visible and infrared light (i.e.,dual-mode) at the same time and achieving certain performance.

The present invention provides an optical image capturing system, whichis capable of focusing visible and infrared light (i.e., dual-mode) atthe same time and achieving certain performance, wherein the seventhlens thereof is provided with an inflection point at the object-sidesurface or at the image-side surface to adjust the incident angle ofeach view field and modify the ODT and the TDT. In addition, thesurfaces of the seventh lens are capable of modifying the optical pathto improve the imaging quality.

The optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens, and an image plane in order along an opticalaxis from an object side to an image side. The first lens has refractivepower. The optical image capturing system satisfies:

1.2≦f/HEP≦10.0; and 0.5≦SETP/STP<1;

where f1, f2, f3, f4, f5, f6, and f7 are respectively a focal length ofthe first lens to the seventh lens; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HOS is a distance between a point on anobject-side surface, which face the object side, of the first lens wherethe optical axis passes through and a point on the image plane where theoptical axis passes through; ETP1, ETP2, ETP3, ETP4, ETP5, ETP6, andETP7 are respectively a thickness in parallel with the optical axis at aheight of ½ HEP of the first lens to the seventh lens, wherein SETP is asum of the aforementioned ETP1 to ETP7; TP1, TP2, TP3, TP4, TP5, TP6,and TP7 are respectively a thickness at the optical axis of the firstlens to the seventh lens, wherein STP is a sum of the aforementioned TP1to TP7.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, a fifth lens, a sixth lens, a seventh lens, and an image plane inorder along an optical axis from an object side to an image side. Thefirst lens has positive refractive power, wherein the object-sidesurface thereof can be convex near the optical axis. The second lens hasrefractive power. The third lens has refractive power. The fourth lenshas refractive power. The fifth lens has refractive power. The sixthlens has refractive power. The seventh lens has negative refractivepower, and the object-side surface and the image-side surface thereofare both aspheric. Each lens of at least two lenses among the first lensto the seventh lens has at least an inflection point on at least asurface thereof. At least one lens between the second lens and theseventh lens has positive refractive power. The optical image capturingsystem satisfies:

1.2≦f/HEP≦10.0; HOI>3.0 mm and 0.2≦EIN/ETL<1;

where f1, f2, f3, f4, f5, f6, and f7 are respectively a focal length ofthe first lens to the seventh lens; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HOS is a distance between a point on anobject-side surface, which face the object side, of the first lens wherethe optical axis passes through and a point on the image plane where theoptical axis passes through; ETL is a distance in parallel with theoptical axis between a coordinate point at a height of ½ HEP on theobject-side surface of the first lens and the image plane; EIN is adistance in parallel with the optical axis between the coordinate pointat the height of ½ HEP on the object-side surface of the first lens anda coordinate point at a height of ½ HEP on the image-side surface of theseventh lens.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, a fifth lens, a sixth lens, a seventh lens, and an image plane, inorder along an optical axis from an object side to an image side. Atleast one surface among the object-side surface and the image-sidesurface of the seventh lens has at least one inflection point thereon.The number of the lenses having refractive power in the optical imagecapturing system is seven. Each lens of at least two lenses among thefirst to the sixth lenses have at least an inflection point on at leastone surface thereof. The first lens has positive refractive power, andthe second lens has refractive power. The third lens has refractivepower. The fourth lens has refractive power. The fifth lens hasrefractive power. The sixth lens has refractive power, and theobject-side surface and the image-side surface thereof are bothaspheric. The seventh lens has negative refractive power, and theobject-side surface and the image-side surface thereof are bothaspheric. The optical image capturing system satisfies:

1.2≦f/HEP≦3.5; 0.4≦|tan(HAF)|≦6.0; HOI>3.0 mm; and 0.2≦EIN/ETL<1;

where f1, f2, f3, f4, f5, f6, and f7 are respectively a focal length ofthe first lens to the seventh lens; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HAF is a half of the maximum field angle of theoptical image capturing system; HOS is a distance between a point on anobject-side surface, which face the object side, of the first lens wherethe optical axis passes through and a point on the image plane where theoptical axis passes through; ETL is a distance in parallel with theoptical axis between a coordinate point at a height of ½ HEP on theobject-side surface of the first lens and the image plane; EIN is adistance in parallel with the optical axis between the coordinate pointat the height of ½ HEP on the object-side surface of the first lens anda coordinate point at a height of ½ HEP on the image-side surface of theseventh lens.

For any lens, the thickness at the height of a half of the entrancepupil diameter (HEP) particularly affects the ability of correctingaberration and differences between optical paths of light in differentfields of view of the common region of each field of view of lightwithin the covered range at the height of a half of the entrance pupildiameter (HEP). With greater thickness, the ability to correctaberration is better. However, the difficulty of manufacturing increasesas well. Therefore, the thickness at the height of a half of theentrance pupil diameter (HEP) of any lens has to be controlled. Theratio between the thickness (ETP) at the height of a half of theentrance pupil diameter (HEP) and the thickness (TP) of any lens on theoptical axis (i.e., ETP/TP) has to be particularly controlled. Forexample, the thickness at the height of a half of the entrance pupildiameter (HEP) of the first lens is denoted by ETP1, the thickness atthe height of a half of the entrance pupil diameter (HEP) of the secondlens is denoted by ETP2, and the thickness at the height of a half ofthe entrance pupil diameter (HEP) of any other lens in the optical imagecapturing system is denoted in the same manner. The optical imagecapturing system of the present invention satisfies:

0.3≦SETP/EIN<1;

where SETP is the sum of the aforementioned ETP1 to ETP5.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of manufacturing at the same time, the ratio between thethickness (ETP) at the height of a half of the entrance pupil diameter(HEP) and the thickness (TP) of any lens on the optical axis (i.e.,ETP/TP) has to be particularly controlled. For example, the thickness atthe height of a half of the entrance pupil diameter (HEP) of the firstlens is denoted by ETP1, the thickness of the first lens on the opticalaxis is TP1, and the ratio between these two parameters is ETP1/TP1; thethickness at the height of a half of the entrance pupil diameter (HEP)of the first lens is denoted by ETP2, the thickness of the second lenson the optical axis is TP2, and the ratio between these two parametersis ETP2/TP2. The ratio between the thickness at the height of a half ofthe entrance pupil diameter (HEP) and the thickness of any other lens inthe optical image capturing system is denoted in the same manner. Theoptical image capturing system of the present invention satisfies:

0.2≦ETP/TP≦3.

The horizontal distance between two neighboring lenses at the height ofa half of the entrance pupil diameter (HEP) is denoted by ED, whereinthe aforementioned horizontal distance (ED) is parallel to the opticalaxis of the optical image capturing system, and particularly affects theability of correcting aberration and differences between optical pathsof light in different fields of view of the common region of each fieldof view of light at the height of a half of the entrance pupil diameter(HEP). With longer distance, the ability to correct aberration ispotential to be better. However, the difficulty of manufacturingincreases, and the feasibility of “slightly shorten” the length of theoptical image capturing system is limited as well. Therefore, thehorizontal distance (ED) between two specific neighboring lenses at theheight of a half of the entrance pupil diameter (HEP) has to becontrolled.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of “slightly shorten” the length of the optical imagecapturing system at the same time, the ratio between the horizontaldistance (ED) between two neighboring lenses at the height of a half ofthe entrance pupil diameter (HEP) and the parallel distance (IN) betweenthese two neighboring lens on the optical axis (i.e., ED/IN) has to beparticularly controlled. For example, the horizontal distance betweenthe first lens and the second lens at the height of a half of theentrance pupil diameter (HEP) is denoted by ED12, the horizontaldistance between the first lens and the second lens on the optical axisis denoted by IN12, and the ratio between these two parameters isED12/IN12; the horizontal distance between the second lens and the thirdlens at the height of a half of the entrance pupil diameter (HEP) isdenoted by ED23, the horizontal distance between the second lens and thethird lens on the optical axis is denoted by IN23, and the ratio betweenthese two parameters is ED23/IN23. The ratio between the horizontaldistance between any two neighboring lenses at the height of a half ofthe entrance pupil diameter (HEP) and the horizontal distance betweenthese two neighboring lenses on the optical axis is denoted in the samemanner.

The horizontal distance in parallel with the optical axis between acoordinate point at the height of ½ HEP on the image-side surface of theseventh lens and image surface is denoted by EBL. The horizontaldistance in parallel with the optical axis between the point on theimage-side surface of the seventh lens where the optical axis passesthrough and the image plane is denoted by BL. To enhance the ability tocorrect aberration and to preserve more space for other opticalcomponents, the optical image capturing system of the present inventioncan satisfy 0.2≦EBL/BL≦1.1. The optical image capturing system canfurther include a filtering component, which is provided between theseventh lens and the image plane, wherein the horizontal distance inparallel with the optical axis between the coordinate point at theheight of ½ HEP on the image-side surface of the seventh lens and thefiltering component is denoted by EIR, and the horizontal distance inparallel with the optical axis between the point on the image-sidesurface of the seventh lens where the optical axis passes through andthe filtering component is denoted by PIR. The optical image capturingsystem of the present invention can satisfy 0.1≦EIR/PIR≦1.1.

In an embodiment, a height of the optical image capturing system (HOS)can be reduced while |f1|>|f7|.

In an embodiment, when the lenses satisfy |f2|+|f3|+|f4|+|f5|+|f6| and|f|+|f7|, at least one lens among the second to the sixth lenses couldhave weak positive refractive power or weak negative refractive power.Herein the weak refractive power means the absolute value of the focallength of one specific lens is greater than 10. When at least one lensamong the second to the sixth lenses has weak positive refractive power,it may share the positive refractive power of the first lens, and on thecontrary, when at least one lens among the second to the sixth lenseshas weak negative refractive power, it may fine tune and correct theaberration of the system.

In an embodiment, the seventh lens could have negative refractive power,and an image-side surface thereof is concave, it may reduce back focallength and size. Besides, the seventh lens can have at least aninflection point on at least a surface thereof, which may reduce anincident angle of the light of an off-axis field of view and correct theaberration of the off-axis field of view.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to thefollowing detailed description of some illustrative embodiments inconjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first embodiment of the presentinvention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the first embodiment of thepresent application;

FIG. 1C shows a feature map of modulation transformation of the opticalimage capturing system of the first embodiment of the presentapplication in visible spectrum;

FIG. 1D shows a feature map of modulation transformation of the opticalimage capturing system of the first embodiment of the presentapplication in infrared spectrum;

FIG. 2A is a schematic diagram of a second embodiment of the presentinvention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the second embodiment of thepresent application;

FIG. 2C shows a feature map of modulation transformation of the opticalimage capturing system of the second embodiment of the presentapplication in visible spectrum;

FIG. 2D shows a feature map of modulation transformation of the opticalimage capturing system of the second embodiment of the presentapplication in infrared spectrum;

FIG. 3A is a schematic diagram of a third embodiment of the presentinvention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the third embodiment of thepresent application;

FIG. 3C shows a feature map of modulation transformation of the opticalimage capturing system of the third embodiment of the presentapplication in visible spectrum;

FIG. 3D shows a feature map of modulation transformation of the opticalimage capturing system of the third embodiment of the presentapplication in infrared spectrum;

FIG. 4A is a schematic diagram of a fourth embodiment of the presentinvention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fourth embodiment of thepresent application;

FIG. 4C shows a feature map of modulation transformation of the opticalimage capturing system of the fourth embodiment in visible spectrum;

FIG. 4D shows a feature map of modulation transformation of the opticalimage capturing system of the fourth embodiment in infrared spectrum;

FIG. 5A is a schematic diagram of a fifth embodiment of the presentinvention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fifth embodiment of thepresent application;

FIG. 5C shows a feature map of modulation transformation of the opticalimage capturing system of the fifth embodiment of the presentapplication in visible spectrum;

FIG. 5D shows a feature map of modulation transformation of the opticalimage capturing system of the fifth embodiment of the presentapplication in infrared spectrum;

FIG. 6A is a schematic diagram of a sixth embodiment of the presentinvention;

FIG. 6B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the sixth embodiment of thepresent application;

FIG. 6C shows a feature map of modulation transformation of the opticalimage capturing system of the sixth embodiment of the presentapplication in visible spectrum; and

FIG. 6D shows a feature map of modulation transformation of the opticalimage capturing system of the sixth embodiment of the presentapplication in infrared spectrum.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens, and an image plane from an object side to animage side. The optical image capturing system further is provided withan image sensor at an image plane.

The optical image capturing system can work in three wavelengths,including 486.1 nm, 587.5 nm, and 656.2 nm, wherein 587.5 nm is the mainreference wavelength and is the reference wavelength for obtaining thetechnical characters. The optical image capturing system can also workin five wavelengths, including 470 nm, 510 nm, 555 nm, 610 nm, and 650nm wherein 555 nm is the main reference wavelength, and is the referencewavelength for obtaining the technical characters.

The optical image capturing system of the present invention satisfies0.5≦ΣNPR|≦15, and a preferable range is 1≦ΣPPR/|ΣNPR|≦3.0, where PPR isa ratio of the focal length f of the optical image capturing system to afocal length fp of each of lenses with positive refractive power; NPR isa ratio of the focal length f of the optical image capturing system to afocal length fn of each of lenses with negative refractive power; ΣPPRis a sum of the PPRs of each positive lens; and ΣNPR is a sum of theNPRs of each negative lens. It is helpful for control of an entirerefractive power and an entire length of the optical image capturingsystem.

The image sensor is provided on the image plane. The optical imagecapturing system of the present invention satisfies HOS/HOI≦10 and0.5≦HOS/f≦10, and a preferable range is 1≦HOS/HOI≦5 and 1≦HOS/f≦7, whereHOI is a half of a diagonal of an effective sensing area of the imagesensor, i.e., the maximum image height, and HOS is a height of theoptical image capturing system, i.e. a distance on the optical axisbetween the object-side surface of the first lens and the image plane.It is helpful for reduction of the size of the system for used incompact cameras.

The optical image capturing system of the present invention further isprovided with an aperture to increase image quality.

In the optical image capturing system of the present invention, theaperture could be a front aperture or a middle aperture, wherein thefront aperture is provided between the object and the first lens, andthe middle is provided between the first lens and the image plane. Thefront aperture provides a long distance between an exit pupil of thesystem and the image plane, which allows more elements to be installed.The middle could enlarge a view angle of view of the system and increasethe efficiency of the image sensor. The optical image capturing systemsatisfies 0.2≦InS/HOS≦1.1, where InS is a distance between the apertureand the image-side surface of the sixth lens. It is helpful for sizereduction and wide angle.

The optical image capturing system of the present invention satisfies0.1≦ΣTP/InTL≦0.9, where InTL is a distance between the object-sidesurface of the first lens and the image-side surface of the seventhlens, and ΣTP is a sum of central thicknesses of the lenses on theoptical axis. It is helpful for the contrast of image and yield rate ofmanufacture and provides a suitable back focal length for installationof other elements.

The optical image capturing system of the present invention satisfies0.001≦|R1/R2|≦20, and a preferable range is 0.01≦|R1/R2|<10, where R1 isa radius of curvature of the object-side surface of the first lens, andR2 is a radius of curvature of the image-side surface of the first lens.It provides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system of the present invention satisfies−7<(R13−R14)/(R13+R14)<50, where R13 is a radius of curvature of theobject-side surface of the seventh lens, and R14 is a radius ofcurvature of the image-side surface of the seventh lens. It may modifythe astigmatic field curvature.

The optical image capturing system of the present invention satisfiesIN12/f≦3.0, where IN12 is a distance on the optical axis between thefirst lens and the second lens. It may correct chromatic aberration andimprove the performance.

The optical image capturing system of the present invention satisfiesIN67/f≦0.8, where IN67 is a distance on the optical axis between thesixth lens and the seventh lens. It may correct chromatic aberration andimprove the performance.

The optical image capturing system of the present invention satisfies0.1≦(TP1+IN12)/TP2≦10, where TP1 is a central thickness of the firstlens on the optical axis, and TP2 is a central thickness of the secondlens on the optical axis. It may control the sensitivity of manufactureof the system and improve the performance.

The optical image capturing system of the present invention satisfies0.1≦(TP7+IN67)/TP6≦10, where TP6 is a central thickness of the sixthlens on the optical axis, TP7 is a central thickness of the seventh lenson the optical axis, and IN67 is a distance between the sixth lens andthe seventh lens. It may control the sensitivity of manufacture of thesystem and improve the performance.

The optical image capturing system of the present invention satisfies0.1≦TP4/(IN34+TP4+IN45)<1, where TP3 is a central thickness of the thirdlens on the optical axis, TP4 is a central thickness of the fourth lenson the optical axis, TP5 is a central thickness of the fifth lens on theoptical axis, IN34 is a distance on the optical axis between the thirdlens and the fourth lens, IN45 is a distance on the optical axis betweenthe fourth lens and the fifth lens, and InTL is a distance between theobject-side surface of the first lens and the image-side surface of theseventh lens. It may fine tune and correct the aberration of theincident rays layer by layer, and reduce the height of the system.

The optical image capturing system satisfies 0 mm≦HVT71≦3 mm; 0mm<HVT72≦6 mm; 0≦HVT71/HVT72; 0 mm≦|SGC71|≦0.5 mm; 0 mm<|SGC72|≦2 mm;and 0<|SGC72|/(|SGC72|+TP7)≦0.9, where HVT71 a distance perpendicular tothe optical axis between the critical point C71 on the object-sidesurface of the seventh lens and the optical axis; HVT72 a distanceperpendicular to the optical axis between the critical point C72 on theimage-side surface of the seventh lens and the optical axis; SGC71 is adistance in parallel with the optical axis between an point on theobject-side surface of the seventh lens where the optical axis passesthrough and the critical point C71; SGC72 is a distance in parallel withthe optical axis between an point on the image-side surface of theseventh lens where the optical axis passes through and the criticalpoint C72. It is helpful to correct the off-axis view field aberration.

The optical image capturing system satisfies 0.2≦HVT72/HOI≦0.9, andpreferably satisfies 0.3≦HVT72/HOI≦0.8. It may help to correct theperipheral aberration.

The optical image capturing system satisfies 0≦HVT72/HOS≦0.5, andpreferably satisfies 0.2≦HVT72/HOS≦0.45. It may help to correct theperipheral aberration.

The optical image capturing system of the present invention satisfies0<SGI711/(SGI711+TP7)≦0.9; 0<SGI721/(SGI721+TP7)≦0.9, and it ispreferable to satisfy 0.1≦SGI711/(SGI711+TP7)≦0.6;0.1≦SGI721/(SGI721+TP7)≦0.6, where SGI711 is a displacement in parallelwith the optical axis, from a point on the object-side surface of theseventh lens, through which the optical axis passes, to the inflectionpoint on the object-side surface, which is the closest to the opticalaxis, and SGI721 is a displacement in parallel with the optical axis,from a point on the image-side surface of the seventh lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The optical image capturing system of the present invention satisfies0<SGI712/(SGI712+TP7)≦0.9; 0<SGI722/(SGI722+TP7)≦0.9, and it ispreferable to satisfy 0.1≦SGI712/(SGI712+TP7)≦0.6;0.1≦SGI722/(SGI722+TP7)≦0.6, where SGI712 is a displacement in parallelwith the optical axis, from a point on the object-side surface of theseventh lens, through which the optical axis passes, to the inflectionpoint on the object-side surface, which is the second closest to theoptical axis, and SGI722 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the seventh lens,through which the optical axis passes, to the inflection point on theimage-side surface, which is the second closest to the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≦|HIF711|≦5 mm; 0.001 mm≦|HIF721|≦5 mm, and it is preferable tosatisfy 0.1 mm≦|HIF711|≦3.5 mm; 1.5 mm≦|HIF721|≦3.5 mm, where HIF711 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is theclosest to the optical axis, and the optical axis; HIF721 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the seventh lens, which is the closest to theoptical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≦|HIF712|≦5 mm; 0.001 mm≦|HIF722|≦5 mm, and it is preferable tosatisfy 0.1 mm≦|HIF722|≦3.5 mm; 0.1 mm≦|HIF712|≦3.5 mm, where HIF712 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is thesecond closest to the optical axis, and the optical axis; HIF722 is adistance perpendicular to the optical axis between the inflection pointon the image-side surface of the seventh lens, which is the secondclosest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≦|HIF713|≦5 mm; 0.001 mm≦|HIF723|≦5 mm, and it is preferable tosatisfy 0.1 mm≦|HIF723|≦3.5 mm; 0.1 mm≦|HIF713|≦3.5 mm, where HIF713 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is the thirdclosest to the optical axis, and the optical axis; HIF723 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the seventh lens, which is the third closest tothe optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≦|HIF714|≦5 mm; 0.001 mm≦|HIF724|≦5 mm, and it is preferable tosatisfy 0.1 mm≦|HIF724|≦3.5 mm; 0.1 mm≦|HIF714|≦3.5 mm, where HIF714 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is thefourth closest to the optical axis, and the optical axis; HIF724 is adistance perpendicular to the optical axis between the inflection pointon the image-side surface of the seventh lens, which is the fourthclosest to the optical axis, and the optical axis.

In an embodiment, the lenses of high Abbe number and the lenses of lowAbbe number are arranged in an interlaced arrangement that could behelpful for correction of aberration of the system.

An equation of aspheric surface is

z=ch ²/[1+[1(k+1)c ² h ²]^(0.5) ]+A4h ⁴ +A6h ⁶ ±A8h ⁸ +A10h ¹⁰ +A12h ¹²+A14h ¹⁴ +A16 h ¹⁶ +A18h ¹⁸ +A20h ²⁰+  (1)

where z is a depression of the aspheric surface; k is conic constant; cis reciprocal of the radius of curvature; and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made ofplastic or glass. The plastic lenses may reduce the weight and lower thecost of the system, and the glass lenses may control the thermal effectand enlarge the space for arrangement of the refractive power of thesystem. In addition, the opposite surfaces (object-side surface andimage-side surface) of the first to the seventh lenses could be asphericthat can obtain more control parameters to reduce aberration. The numberof aspheric glass lenses could be less than the conventional sphericalglass lenses, which is helpful for reduction of the height of thesystem.

When the lens has a convex surface, which means that the surface isconvex around a position, through which the optical axis passes, andwhen the lens has a concave surface, which means that the surface isconcave around a position, through which the optical axis passes.

The optical image capturing system of the present invention could beapplied in a dynamic focusing optical system. It is superior in thecorrection of aberration and high imaging quality so that it could beallied in lots of fields.

The optical image capturing system of the present invention couldfurther include a driving module to meet different demands, wherein thedriving module can be coupled with the lenses to move the lenses. Thedriving module can be a voice coil motor (VCM), which is used to movethe lens for focusing, or can be an optical image stabilization (OIS)component, which is used to lower the possibility of having the problemof image blurring which is caused by subtle movements of the lens whileshooting.

To meet different requirements, at least one lens among the first lensto the seventh lens of the optical image capturing system of the presentinvention can be a light filter, which filters out light of wavelengthshorter than 500 nm. Such effect can be achieved by coating on at leastone surface of the lens, or by using materials capable of filtering outshort waves to make the lens.

We provide several embodiments in conjunction with the accompanyingdrawings for the best understanding, which are:

First Embodiment

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 10 ofthe first embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 110, an aperture100, a second lens 120, a third lens 130, a fourth lens 140, a fifthlens 150, a sixth lens 160, a seventh lens 170, an infrared rays filter180, an image plane 190, and an image sensor 192. FIG. 1C shows amodulation transformation of the optical image capturing system 10 ofthe first embodiment of the present application in visible spectrum, andFIG. 1D shows a modulation transformation of the optical image capturingsystem 10 of the first embodiment of the present application in infraredspectrum.

The first lens 110 has positive refractive power and is made of plastic.An object-side surface 112 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 114 thereof, whichfaces the image side, is a concave aspheric surface. A thickness of thefirst lens 110 on the optical axis is TP1, and a thickness of the firstlens 110 at the height of a half of the entrance pupil diameter (HEP) isdenoted by ETP1.

The second lens 120 has negative refractive power and is made ofplastic. An object-side surface 122 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 124thereof, which faces the image side, is a concave aspheric surface. Theimage-side surface 124 has an inflection point. A thickness of thesecond lens 120 on the optical axis is TP2, and thickness of the secondlens 120 at the height of a half of the entrance pupil diameter (HEP) isdenoted by ETP2.

The second lens satisfies SGI221=0.14138 mm; TP2=0.23 mm;|SGI221|/(|SGI221|+TP2)=0.38069, where a displacement in parallel withthe optical axis from a point on the object-side surface of the secondlens, through which the optical axis passes, to the inflection point onthe image-side surface, which is the closest to the optical axis isdenoted by SGI211, and a displacement in parallel with the optical axisfrom a point on the image-side surface of the second lens, through whichthe optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis is denoted by SGI221.

The second lens satisfies HIF221=1.15809 mm; HIF221/HOI=0.29596, where adisplacement perpendicular to the optical axis from a point on theobject-side surface of the second lens, through which the optical axispasses, to the inflection point, which is the closest to the opticalaxis is denoted by HIF211, and a displacement perpendicular to theoptical axis from a point on the image-side surface of the second lens,through which the optical axis passes, to the inflection point, which isthe closest to the optical axis is denoted by HIF221.

The third lens 130 has negative refractive power and is made of plastic.An object-side surface 132, which faces the object side, is a concaveaspheric surface, and an image-side surface 134, which faces the imageside, is a convex aspheric surface. The image-side surface 134 has twoinflection points. A thickness of the third lens 130 on the optical axisis TP3, and a thickness of the third lens 130 at the height of a half ofthe entrance pupil diameter (HEP) is denoted by ETP3.

The third lens 130 satisfies SGI321=0.00124 mm;|SGI321|/(|SGI321|+TP3)=0.00536, where SGI311 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the third lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis, and SGI321 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the third lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The third lens 130 satisfies SGI322=0.00103 mm;|SGI322|/(|SGI322|+TP3)=0.00445, where SGI312 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the third lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the second closestto the optical axis, and SGI322 is a displacement in parallel with theoptical axis, from a point on the image-side surface of the third lens,through which the optical axis passes, to the inflection point on theobject-side surface, which is the second closest to the optical axis.

The third lens 130 further satisfies HIF321=0.37528 mm;HIF321/HOI=0.09591, where HIF311 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe third lens, which is the closest to the optical axis, and theoptical axis; HIF321 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the thirdlens, which is the closest to the optical axis, and the optical axis.

The third lens 130 satisfies HIF322=0.92547 mm; HIF322/HOI=0.23651,where HIF312 is a distance perpendicular to the optical axis between theinflection point on the object-side surface of the third lens, which isthe second closest to the optical axis, and the optical axis; HIF322 isa distance perpendicular to the optical axis between the inflectionpoint on the image-side surface of the third lens, which is the secondclosest to the optical axis, and the optical axis.

The fourth lens 140 has positive refractive power and is made ofplastic. An object-side surface 142, which faces the object side, is aconvex aspheric surface, and an image-side surface 144, which faces theimage side, is a convex aspheric surface. The object-side surface 142has two inflection points. A thickness of the fourth lens 140 on theoptical axis is TP4, and a thickness of the fourth lens 140 at theheight of a half of the entrance pupil diameter (HEP) is denoted byETP4.

The fourth lens 140 satisfies SGI411=0.01264 mm;|SGI411|/(|SGI411|+TP4)=0.02215, where SGI411 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the fourth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis, and SGI421 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the fourth lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The fourth lens 140 satisfies SGI412=0.02343 mm;|SGI412|/(|SGI412|+TP4)=0.04032, where SGI412 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the fourth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the second closestto the optical axis, and SGI422 is a displacement in parallel with theoptical axis, from a point on the image-side surface of the fourth lens,through which the optical axis passes, to the inflection point on theobject-side surface, which is the second closest to the optical axis.

The fourth lens 140 further satisfies HIF411=0.63515 mm;HIF411/HOI=0.16232, where HIF411 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fourth lens, which is the closest to the optical axis, and theoptical axis; HIF421 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the fourthlens, which is the closest to the optical axis, and the optical axis.

The fourth lens 140 satisfies HIF412=1.33003 mm; HIF412/HOI=0.33990,where HIF412 is a distance perpendicular to the optical axis between theinflection point on the object-side surface of the fourth lens, which isthe second closest to the optical axis, and the optical axis; HIF422 isa distance perpendicular to the optical axis between the inflectionpoint on the image-side surface of the fourth lens, which is the secondclosest to the optical axis, and the optical axis.

The fifth lens 150 has positive refractive power and is made of plastic.An object-side surface 152, which faces the object side, is a convexaspheric surface, and an image-side surface 154, which faces the imageside, is a concave aspheric surface. The object-side surface 152 and theimage-side surface 154 both have two inflection points. A thickness ofthe fifth lens 150 on the optical axis is TP5, and a thickness of thefifth lens 150 at the height of a half of the entrance pupil diameter(HEP) is denoted by ETP5.

The fifth lens 150 satisfies SGI511=0.02069 mm; SGI521=0.00984 mm;|SGI511|/(|SGI511|+TP5)=0.07040; |SGI521|/(|SGI521|+TP5)=0.03479, whereSGI511 is a displacement in parallel with the optical axis, from a pointon the object-side surface of the fifth lens, through which the opticalaxis passes, to the inflection point on the object-side surface, whichis the closest to the optical axis, and SGI521 is a displacement inparallel with the optical axis, from a point on the image-side surfaceof the fifth lens, through which the optical axis passes, to theinflection point on the image-side surface, which is the closest to theoptical axis.

The fifth lens 150 satisfies SGI512=−0.17881 mm; SGI522=−0.21283 mm;|SGI512|/(|SGI512|+TP5)=1.89553; |SGI522|/(|SGI522|+TP5)=3.52847, whereSGI512 is a displacement in parallel with the optical axis, from a pointon the object-side surface of the fifth lens, through which the opticalaxis passes, to the inflection point on the object-side surface, whichis the second closest to the optical axis, and SGI522 is a displacementin parallel with the optical axis, from a point on the image-sidesurface of the fifth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the second closestto the optical axis.

The fifth lens 150 further satisfies HIF511=0.54561 mm; HIF521=0.45768mm; HIF511/HOI=0.13944; HIF521/HOI=0.11696, where HIF511 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the fifth lens, which is the closest to theoptical axis, and the optical axis; HIF521 is a distance perpendicularto the optical axis between the inflection point on the image-sidesurface of the fifth lens, which is the closest to the optical axis, andthe optical axis.

The fifth lens 150 satisfies HIF512=1.6428 mm; HIF522=1.66808 mm;HIF512/HOI=0.41983; HIF522/HOI=0.42629, where HIF512 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the fifth lens, which is the second closest tothe optical axis, and the optical axis; HIF522 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the fifth lens, which is the second closest to theoptical axis, and the optical axis.

The sixth lens 160 has positive refractive power and is made of plastic.An object-side surface 162, which faces the object side, is a convexaspheric surface, and an image-side surface 164, which faces the imageside, is a convex aspheric surface. The object-side surface 162 has atleast one inflection point. Whereby, the incident angle of each viewfield entering the sixth lens 160 can be effectively adjusted to improveaberration. A thickness of the sixth lens 160 on the optical axis isTP6, and a thickness of the sixth lens 160 at the height of a half ofthe entrance pupil diameter (HEP) is denoted by ETP6.

The sixth lens 160 satisfies SGI611=0.03349 mm;|SGI611|/(|SGI611|+TP6)=0.03224, where SGI611 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the sixth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis, and SGI621 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the sixth lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The sixth lens 160 further satisfies HIF611=0.78135 mm;HIF611/HOI=0.19968, where HIF611 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe sixth lens, which is the closest to the optical axis, and theoptical axis; HIF621 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the sixthlens, which is the closest to the optical axis, and the optical axis.

The seventh lens 170 has negative refractive power and is made ofplastic. An object-side surface 172, which faces the object side, is aconcave aspheric surface, and an image-side surface 174, which faces theimage side, is a concave aspheric surface. The image-side surface 174has an inflection point. A thickness of the seventh lens 170 on theoptical axis is TP7, and a thickness of the seventh lens 170 at theheight of a half of the entrance pupil diameter (HEP) is denoted byETP7.

The seventh lens 170 satisfies SGI721=0.02449 mm;|SGI721|/(|SGI721|+TP7)=0.08004, where SGI711 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the seventh lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis, and SGI721 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the seventh lens,through which the optical axis passes, to the inflection point on theimage-side surface, which is the closest to the optical axis. Theseventh lens 170 further satisfies HIF721=0.71190 mm;HIF721/HOI=0.18193, where HIF711 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe seventh lens, which is the closest to the optical axis, and theoptical axis; HIF721 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the seventhlens, which is the closest to the optical axis, and the optical axis.

A distance in parallel with the optical axis between a coordinate pointat a height of ½ HEP on the object-side surface of the first lens 110and the image plane is ETL, and a distance in parallel with the opticalaxis between the coordinate point at the height of ½ HEP on theobject-side surface of the first lens 110 and a coordinate point at aheight of ½ HEP on the image-side surface of the seventh lens 140 isEIN, which satisfies: ETL=5.660 mm; EIN=5.037 mm; EIN/ETL=0.890.

The optical image capturing system of the first embodiment satisfies:ETP1=0.375 mm; ETP2=0.312 mm; ETP3=0.341 mm; ETP4=0.451 mm; ETP5=0.242mm; ETP6=0.775 mm; ETP7=0.737 mm. The sum of the aforementioned ETP1 toETP7 is SETP, wherein SETP=3.232 mm. In addition, TP1=0.669 mm;TP2=0.230 mm; TP3=0.230 mm; TP4=0.558 mm; TP5=0.273 mm; TP6=1.005 mm;TP7=0.281 mm. The sum of the aforementioned TP1 to TP7 is STP, whereinSTP=3.247 mm. In addition, SETP/STP=0.995, and SETP/EIN=0.642.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of manufacturing at the same time, the ratio between thethickness (ETP) at the height of a half of the entrance pupil diameter(HEP) and the thickness (TP) of any lens on the optical axis (i.e.,ETP/TP) in the optical image capturing system of the first embodiment isparticularly controlled, which satisfies: ETP1/TP1=0.560;ETP2/TP2=1.355; ETP3/TP3=1.481; ETP4/TP4=0.808; ETP5/TP5=0.887;ETP6/TP6=0.771; ETP7/TP7=2.618.

In order to enhance the ability of correcting aberration, lower thedifficulty of manufacturing, and “slightly shortening” the length of theoptical image capturing system at the same time, the ratio between thehorizontal distance (ED) between two neighboring lenses at the height ofa half of the entrance pupil diameter (HEP) and the parallel distance(IN) between these two neighboring lens on the optical axis (i.e.,ED/IN) in the optical image capturing system of the first embodiment isparticularly controlled, which satisfies: the horizontal distancebetween the first lens 110 and the second lens 120 at the height of ahalf of the entrance pupil diameter (HEP) is denoted by ED12, whereinED12=0.156 mm; the horizontal distance between the second lens 120 andthe third lens 130 at the height of a half of the entrance pupildiameter (HEP) is denoted by ED23, wherein ED23=0.102 mm; the horizontaldistance between the third lens 130 and the fourth lens 140 at theheight of a half of the entrance pupil diameter (HEP) is denoted byED34, wherein ED34=0.077 mm; the horizontal distance between the fourthlens 140 and the fifth lens 150 at the height of a half of the entrancepupil diameter (HEP) is denoted by ED45, wherein ED45=0.255 mm; thehorizontal distance between the fifth lens 150 and the sixth lens 160 atthe height of a half of the entrance pupil diameter (HEP) is denoted byED56, wherein ED56=0.608 mm; the horizontal distance between the sixthlens 160 and the seventh lens 170 at the height of a half of theentrance pupil diameter (HEP) is denoted by ED67, wherein ED67=0.607 mm.The sum of the aforementioned ED12 to ED67 is SED, wherein SED=1.806 mm.

The horizontal distance between the first lens 110 and the second lens120 on the optical axis is denoted by IN12, wherein IN12=0.135 mm, andED12/IN12=1.155. The horizontal distance between the second lens 120 andthe third lens 130 on the optical axis is denoted by IN23, whereinIN23=0.359 mm, and ED23/IN23=0.285. The horizontal distance between thethird lens 130 and the fourth lens 140 on the optical axis is denoted byIN34, wherein IN34=0.055 mm, and ED34/IN34=1.401. The horizontaldistance between the fourth lens 140 and the fifth lens 150 on theoptical axis is denoted by IN45, wherein IN45=0.152 mm, andED45/IN45=1.681. The horizontal distance between the fifth lens 150 andthe sixth lens 160 on the optical axis is denoted by IN56, whereinIN56=0.543 mm, and ED56/IN56=1.121. The horizontal distance between thesixth lens 160 and the seventh lens 170 on the optical axis is denotedby IN67, wherein IN67=0.842 mm, and ED67/IN67=0.721. The sum of theaforementioned IN12 to IN67 is denoted by SIN, wherein SIN=2.086, andSED/SIN=0.866.

The optical image capturing system of the first embodiment satisfies:ED12/ED23=1.527; ED23/ED34=1.331; ED34/ED45=0.301; ED45/ED56=0.420;ED56/ED67=1.002; IN12/IN23=0.377; IN23/IN34=6.541; IN34/IN45=0.361;IN45/IN56=0.280; IN56/IN67=0.644.

The horizontal distance in parallel with the optical axis between acoordinate point at the height of ½ HEP on the image-side surface of theseventh lens 170 and image surface is denoted by EBL, wherein EBL=0.623mm. The horizontal distance in parallel with the optical axis betweenthe point on the image-side surface of the seventh lens 170 where theoptical axis passes through and the image plane is denoted by BL,wherein BL=0.665 mm. The optical image capturing system of the firstembodiment satisfies: EBL/BL=0.9368. The horizontal distance in parallelwith the optical axis between the coordinate point at the height of ½HEP on the image-side surface of the seventh lens 170 and the infraredrays filter 180 is denoted by EIR, wherein EIR=0.156 mm. The horizontaldistance in parallel with the optical axis between the point on theimage-side surface of the seventh lens 170 where the optical axis passesthrough and the infrared rays filter 180 is denoted by PIR, whereinPIR=0.200 mm, and it satisfies: EIR/PIR=0.778.

The infrared rays filter 180 is made of glass and between the seventhlens 170 and the image plane 190. The infrared rays filter 180 gives nocontribution to the focal length of the system.

The optical image capturing system 10 of the first embodiment has thefollowing parameters, which are f=4.5707 mm; f/HEP=1.8; HAF=40 degrees;and tan(HAF)=0.8390, where f is a focal length of the system; HAF is ahalf of the maximum field angle; and HEP is an entrance pupil diameter.

The parameters of the lenses of the first embodiment are f1=4.4284 mm;|f/f1|=1.03; f7=−2.8334; |f1|>f7; and |f1/f7|=1.56, where f1 is a focallength of the first lens 110; and f7 is a focal length of the seventhlens 170.

The first embodiment further satisfies |f2|+|f3|+|f4|+|f5|+|f6|=90.6484;|f1|+|f7|=7.2618 and |f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f7|, where f2 is afocal length of the second lens 120, f3 is a focal length of the thirdlens 130, f4 is a focal length of the fourth lens 140, f5 is a focallength of the fifth lens 150, f6 is a focal length of the sixth lens160, and f7 is a focal length of the seventh lens 170.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣPPR=f/f1+f/f4+f/f5+f/f6=2.40; ΣNPR=f/f2+f/f3+f/f7=−2.26;ΣPPR/|ΣNPR|=1.07; |f/f2|=0.44; |f/f3|=0.19; |f/f4|=0.22; |f/f5|=0.15;|f/f6|=0.996; |f/f7|=1.62, where PPR is a ratio of a focal length f ofthe optical image capturing system to a focal length fp of each of thelenses with positive refractive power; and NPR is a ratio of a focallength f of the optical image capturing system to a focal length fn ofeach of lenses with negative refractive power.

The optical image capturing system 10 of the first embodiment furthersatisfies InTL+BFL=HOS; HOS=6.0044 mm; HOI=3.8353 mm; HOS/HOI=5.2257;HOS/f=1.3137; InS=5.2899 mm; and InS/HOS=0.8810, where InTL is adistance between the object-side surface 112 of the first lens 110 andthe image-side surface 174 of the seventh lens 170; HOS is a height ofthe image capturing system, i.e. a distance between the object-sidesurface 112 of the first lens 110 and the image plane 190; InS is adistance between the aperture 100 and the image plane 190; HOI is a halfof a diagonal of an effective sensing area of the image sensor 192,i.e., the maximum image height; and BFL is a distance between theimage-side surface 174 of the seventh lens 170 and the image plane 190.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣTP=3.2467 mm; and ΣTP/InTL=0.6088, where ΣTP is a sum of thethicknesses of the lenses 110-150 with refractive power. It is helpfulfor the contrast of image and yield rate of manufacture and provides asuitable back focal length for installation of other elements.

The optical image capturing system 10 of the first embodiment furthersatisfies |R1/R2|=0.0861, where R1 is a radius of curvature of theobject-side surface 112 of the first lens 110, and R2 is a radius ofcurvature of the image-side surface 114 of the first lens 110. Itprovides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system 10 of the first embodiment furthersatisfies (R13−R14)/(R13+R14)=−1.5469, where R13 is a radius ofcurvature of the object-side surface 172 of the seventh lens 170, andR14 is a radius of curvature of the image-side surface 174 of theseventh lens 170. It may modify the astigmatic field curvature.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣPP=f1+f4+f5+f6=60.2624 mm; and f1/(f1+f4+f5+f6)=0.0731, wheref1, f4, f5, f6 are local lengths of the first lens 110, the fourth lens140, the fifth lens 150, and the sixth lens 160 respectively; ΣPP is asum of the focal lengths fp of each lens with positive refractive power.It is helpful to share the positive refractive power of the first lens110 to other positive lenses to avoid the significant aberration causedby the incident rays.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣNP=f2+f3+f7=−36.8510 mm; and f7/(f2+f3+f7)=0.0765, where f2,f3, f7 are the focal length of the second lens 120, the third lens 130,and the seventh lens 170 respectively; ΣNP is a sum of the focal lengthsfn of each lens with negative refractive power. It is helpful to sharethe negative refractive power of the seventh lens 170 to the othernegative lens, which avoids the significant aberration caused by theincident rays.

The optical image capturing system 10 of the first embodiment furthersatisfies IN12=0.1352 mm; IN12/f=0.0296, where IN12 is a distance on theoptical axis between the first lens 110 and the second lens 120. It maycorrect chromatic aberration and improve the performance.

The optical image capturing system 10 of the first embodiment furthersatisfies TP1=0.6689 mm; TP2=0.23 mm; and (TP1+IN12)/TP2=3.4961, whereTP1 is a central thickness of the first lens 110 on the optical axis,and TP2 is a central thickness of the second lens 120 on the opticalaxis. It may control the sensitivity of manufacture of the system andimprove the performance.

The optical image capturing system 10 of the first embodiment furthersatisfies TP6=1.0055 mm; TP7=0.2814 mm; and (TP7+IN67)/TP6=1.1176, whereTP6 is a central thickness of the sixth lens 160 on the optical axis,TP7 is a central thickness of the seventh lens 170 on the optical axis,and IN67 is a distance on the optical axis between the sixth lens 160and the seventh lens 170. It may control the sensitivity of manufactureof the system and lower the total height of the system.

The optical image capturing system 10 of the first embodiment furthersatisfies TP3=0.23 mm; TP4=0.5578 mm; TP5=0.2731 mm; IN34=0.054835 mm;IN45=0.15197 mm; and TP4/(IN34+TP4+IN45)=0.72952, where TP3 is a centralthickness of the third lens 130 on the optical axis, TP4 is a centralthickness of the fourth lens 140 on the optical axis, TP5 is a centralthickness of the fifth lens 150 on the optical axis; IN34 is a distanceon the optical axis between the third lens 130 and the fourth lens 140;IN45 is a distance on the optical axis between the fourth lens 140 andthe fifth lens 150; InTL is a distance between the object-side surface112 of the first lens 110 and the image-side surface 174 of the seventhlens 170. It may control the sensitivity of manufacture of the systemand lower the total height of the system.

The optical image capturing system 10 of the first embodiment furthersatisfies InRS61=−0.3725 mm; InRS62=−1.0961 mm; and |InRS62|/TP6=1.0901,where InRS61 is a displacement in parallel with the optical axis from apoint on the object-side surface 162 of the sixth lens 160, throughwhich the optical axis passes, to a point at the maximum effective semidiameter of the object-side surface 162 of the sixth lens 160; InRS62 isa displacement in parallel with the optical axis from a point on theimage-side surface 164 of the sixth lens 160, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theimage-side surface 164 of the sixth lens 160; and TP6 is a centralthickness of the sixth lens 160 on the optical axis. It is helpful formanufacturing and shaping of the lenses and is helpful to reduce thesize.

The optical image capturing system 10 of the first embodiment furthersatisfies HVT61=1.2142 mm; HVT62=0 mm; and HVT61/HVT62=0, where HVT61 isa distance perpendicular to the optical axis between the critical pointon the object-side surface 162 of the sixth lens 160 and the opticalaxis; and HVT62 is a distance perpendicular to the optical axis betweenthe critical point on the image-side surface 164 of the sixth lens 160and the optical axis.

The optical image capturing system 10 of the first embodiment furthersatisfies InRS71=−1.851 mm; InRS72=−1.0045 mm; and |InRS72|/TP7=3.5697,where InRS71 is a displacement in parallel with the optical axis from apoint on the object-side surface 172 of the seventh lens 170, throughwhich the optical axis passes, to a point at the maximum effective semidiameter of the object-side surface 172 of the seventh lens 170; InRS72is a displacement in parallel with the optical axis from a point on theimage-side surface 174 of the seventh lens 170, through which theoptical axis passes, to a point at the maximum effective semi diameterof the image-side surface 174 of the seventh lens 170; and TP7 is acentral thickness of the seventh lens 170 on the optical axis. It ishelpful for manufacturing and shaping of the lenses and is helpful toreduce the size.

The optical image capturing system 10 of the first embodiment satisfiesHVT71=0 mm; HVT72=1.2674 mm; and HVT71/HVT72=0, where HVT71 is adistance perpendicular to the optical axis between the critical point onthe object-side surface 172 of the seventh lens 170 and the opticalaxis; and HVT72 is a distance perpendicular to the optical axis betweenthe critical point on the image-side surface 174 of the seventh lens 170and the optical axis.

The optical image capturing system 10 of the first embodiment satisfiesHVT72/HOI=0.3305. It is helpful for correction of the aberration of theperipheral view field of the optical image capturing system.

The optical image capturing system 10 of the first embodiment satisfiesHVT72/HOS=0.2111. It is helpful for correction of the aberration of theperipheral view field of the optical image capturing system.

The second lens 120, the third lens 130, and the seventh lens 170 havenegative refractive power. The optical image capturing system 10 of thefirst embodiment further satisfies 1≦NA7/NA2, where NA2 is an Abbenumber of the second lens 120; NA3 is an Abbe number of the third lens130; and NA7 is an Abbe number of the seventh lens 170. It may correctthe aberration of the optical image capturing system.

The optical image capturing system 10 of the first embodiment furthersatisfies |TDT|=0.94%; |ODT|=1.9599%, where TDT is TV distortion; andODT is optical distortion.

For the optical image capturing system of the first embodiment, thevalues of MTF in the spatial frequency of 55 cycles/mm at the opticalaxis, 0.3 field of view, and 0.7 field of view of visible light on animage plane are respectively denoted by MTFE0, MTFE3, and MTFE7, whereinMTFE0 is around 0.9, MTFE3 is around 0.87, and MTEF7 is around 0.85; thevalues of MTF in the spatial frequency of 110 cycles/mm at the opticalaxis, 0.3 field of view, and 0.7 field of view of visible light on animage plane are respectively denoted by MTFQ0, MTFQ3, and MTFQ7, whereinMTFQ0 is around 0.77, MTFQ3 is around 0.68, and MTFQ7 is around 0.63;the values of modulation transfer function (MTF) in the spatialfrequency of 220 cycles/mm at the optical axis, 0.3 field of view, and0.7 field of view on an image plane are respectively denoted by MTFH0,MTFH3, and MTFH7, wherein MTFH0 is around 0.57, MTFH3 is around 0.36,and MTFH7 is around 0.3.

For the optical image capturing system of the first embodiment, when theinfrared of wavelength of 850 nm focuses on the image plane, the valuesof MTF in spatial frequency (55 cycles/mm) at the optical axis, 0.3 HOI,and 0.7 HOI on an image plane are respectively denoted by MTFI0, MTFI3,and MTFI7, wherein MTFI0 is around 0.88, MTFI3 is around 0.84, and MTFI7is around 0.78.

The parameters of the lenses of the first embodiment are listed in Table1 and Table 2.

TABLE 1 f = 4.5707 mm; f/HEP = 1.8; HAF = 40 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object plane infinity 1 1^(st) lens 2.29712 0.668946plastic 1.565 58 4.405 2 26.68297 0.045368 3 Aperture plane 0.089845 42^(nd) lens 13.65238 0.23 plastic 1.65 21.4 −10.384 5 4.48669 0.358683 63^(rd) lens −22.8014 0.23 plastic 1.65 21.4 −23.649 7 47.36599 0.0548358 4^(th) lens 13.20186 0.557788 plastic 1.565 58 20.384 9 −88.86460.15197 10 5^(th) lens 5.93232 0.273144 plastic 1.565 58 30.886 118.83826 0.542787 12 6^(th) lens 7.94491 1.005484 plastic 1.565 58 4.58713 −3.67115 0.842285 14 7^(th) lens −1.83128 0.281438 plastic 1.565 58−2.818 15 8.52815 0.2 16 Infrared rays filter plane 0.2 BK_7 1.517 64.217 plane 0.267427 18 Image plane plane Reference wavelength (d-line):587.5 mm.

TABLE 2 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 k0.41223 23.12364 41.72578 7.17837 49.99854 −50.00000 −36.62296 A4−2.71583E−03  1.12798E−02 2.61376E−03 −1.30847E−02 −2.29364E−02−1.22682E−02 −1.46685E−02 A6  1.46922E−03 −4.13663E−03 −1.04751E−03 −6.19251E−03 −1.07500E−02 −1.19599E−03  6.97097E−04 A8 −1.16798E−03 2.64633E−03 1.64429E−03  3.31848E−03  1.74194E−03  2.58555E−03−7.00461E−05 A10  3.86338E−04 −4.87913E−04 1.38781E−04 −2.16169E−03−1.35269E−03  8.44094E−04  2.49597E−04 A12 A14 Surface 9 10 11 12 13 1415 k 50.00000 −48.11219 −49.99984 −16.63997 −2.21871 −0.59182 −38.73828A4 −3.04263E−02 −2.44747E−02 −3.74075E−02 −6.98486E−03 1.46247E−023.52383E−03 −1.36118E−02 A6 −3.91762E−03 −4.89633E−03  2.04344E−04−4.00620E−03 −6.01684E−03  −6.07710E−03  −4.77797E−06 A8 −8.89754E−04−9.29273E−04 −3.75360E−04 −3.83899E−04 −3.42351E−04  4.66383E−04 2.50062E−05 A10 −4.10632E−06 −2.24070E−05 −4.59214E−04 −7.50806E−051.51881E−05 1.30961E−04  1.57226E−06 A12 −3.81083E−04 −7.68111E−05−5.94891E−06 1.57349E−06 9.98584E−06  4.62952E−08 A14  1.44730E−04 6.86388E−05 −2.82154E−06 2.09638E−07 −3.94438E−06  −3.77857E−08

The detail parameters of the first embodiment are listed in Table 1, inwhich the unit of the radius of curvature, thickness, and focal lengthare millimeter, and surface 0-10 indicates the surfaces of all elementsin the system in sequence from the object side to the image side. Table2 is the list of coefficients of the aspheric surfaces, in which A1-A20indicate the coefficients of aspheric surfaces from the first order tothe twentieth order of each aspheric surface. The following embodimentshave the similar diagrams and tables, which are the same as those of thefirst embodiment, so we do not describe it again.

Second Embodiment

As shown in FIG. 2A and FIG. 2B, an optical image capturing system 20 ofthe second embodiment of the present invention includes, along anoptical axis from an object side to an image side, a first lens 210, anaperture 200, a second lens 220, a third lens 230, a fourth lens 240, afifth lens 250, a sixth lens 260, a seventh lens 270, an infrared raysfilter 280, an image plane 290, and an image sensor 292. FIG. 2C shows amodulation transformation of the optical image capturing system 20 ofthe second embodiment of the present application in visible spectrum,and FIG. 2D shows a modulation transformation of the optical imagecapturing system 20 of the second embodiment of the present applicationin infrared spectrum.

The first lens 210 has positive refractive power and is made of plastic.An object-side surface 212 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 214 thereof, whichfaces the image side, is a convex aspheric surface. The object-sidesurface 212 has two inflection points, and the image-side surface 214has an inflection point.

The second lens 220 has negative refractive power and is made ofplastic. An object-side surface 222 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 224thereof, which faces the image side, is a concave aspheric surface. Theimage-side 224 surface has an inflection point.

The third lens 230 has negative refractive power and is made of plastic.An object-side surface 232, which faces the object side, is a concaveaspheric surface, and an image-side surface 234, which faces the imageside, is a concave aspheric surface. The image-side surface 234 has aninflection point.

The fourth lens 240 has positive refractive power and is made ofplastic. An object-side surface 242, which faces the object side, is aconcave aspheric surface, and an image-side surface 244, which faces theimage side, is a convex aspheric surface. The object-side surface 242and the image-side surface 244 both have an inflection point.

The fifth lens 250 has positive refractive power and is made of plastic.An object-side surface 252, which faces the object side, is a convexaspheric surface, and an image-side surface 254, which faces the imageside, is a concave aspheric surface. The object-side surface 252 and theimage-side surface 254 both have an inflection point.

The sixth lens 260 has positive refractive power and is made of plastic.An object-side surface 262, which faces the object side, is a concavesurface, and an image-side surface 254, which faces the image side, is aconvex surface. Whereby, the incident angle of each view field enteringthe sixth lens 260 can be effectively adjusted to improve aberration.

The seventh lens 270 has negative refractive power and is made ofplastic. An object-side surface 272, which faces the object side, is aconvex surface, and an image-side surface 274, which faces the imageside, is a concave surface. It may help to shorten the back focal lengthto keep small in size. In addition, the image-side surface 274 of theseventh lens 270 has an inflection point, which may reduce an incidentangle of the light of an off-axis field of view and correct theaberration of the off-axis field of view.

The infrared rays filter 280 is made of glass and between the seventhlens 270 and the image plane 290. The infrared rays filter 280 gives nocontribution to the focal length of the system.

The optical image capturing system of the second embodiment satisfies|f2|+|f3|+|f4|+|f5|+|f6|=51.9801; |f1|+|f7|=8.6420; and|f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f7|, where f2 is a focal length of thesecond lens 220, f3 is a focal length of the third lens 230, f4 is afocal length of the fourth lens 240, f5 is a focal length of the fifthlens 250, f6 is a focal length of the sixth lens 260, and f7 is a focallength of the seventh lens 270.

The optical image capturing system of the second embodiment satisfiesTP6=0.9525 mm; and TP7=0.4852 mm, where TP6 is a thickness of the sixthlens 260 on the optical axis, TP7 is a thickness of the seventh lens 270on the optical axis.

In the second embodiment, the optical image capturing system of thesecond embodiment further satisfies ΣPP=35.8351 mm; and f1/ΣPP=0.1647,where ΣPP is a sum of the focal lengths of each positive lens. It ishelpful to share the positive refractive power of one single lens to theother positive lens to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the second embodiment furthersatisfies ΣNP=−24.7870 mm; and f7/ΣNP=0.1106, where ΣNP is a sum of thefocal lengths of each negative lens. It is helpful to share the negativerefractive power of the sixth lens 260 to other negative lenses.

The parameters of the lenses of the second embodiment are listed inTable 3 and Table 4.

TABLE 3 f = 5.2526 mm; f/HEP = 1.7; HAF = 36 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object plane infinity 1 1^(st) lens 68.11996 0.483487plastic 1.565 58 4.405 2 −3.49625 0 3 Aperture plane 0.05 4 2^(nd) lens4.03473 0.447528 plastic 1.55 56.5 −10.384 5 2.57638 0.858457 6 3^(rd)lens −5.20633 0.23 plastic 1.65 21.4 −23.649 7 78.27114 0.115778 84^(th) lens −141.931 0.622323 plastic 1.565 58 20.384 9 −4.21078 0.05 105^(th) lens 7.56606 0.714199 plastic 1.565 58 30.886 11 25.076351.192391 12 6^(th) lens −19.0648 0.952472 plastic 1.565 58 4.587 13−1.76128 0.403276 14 7^(th) lens −137.931 0.48516 plastic 1.53 55.8−2.818 15 1.47037 0.5 16 Infrared rays filter plane 0.2 BK_7 1.517 64.217 plane 0.694929 18 Image plane plane Reference wavelength (d-line):587.5 nm.

TABLE 4 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 k−50 −21.586601 −5.210483 −12.5848 5.807337 −50 50 A4 −3.30061E−03−7.05919E−03 −2.64853E−03 −9.68664E−03 −6.05571E−03 −6.49213E−03−1.19614E−02 A6  2.10836E−04  1.78341E−03  1.43036E−03  2.50120E−03 1.10636E−03  1.48510E−03  4.37485E−05 A8 −5.02110E−04 −8.63373E−04−5.21815E−04 −2.85206E−05 −5.79228E−04 −2.52288E−04 −1.54836E−04 A10 1.12193E−04  1.53993E−04  9.36345E−05 −5.99588E−05 −2.52690E−05 2.05622E−05  6.55356E−05 A12 A14 Surface 9 10 11 12 13 14 15 k 0.292426−0.518495 42.211497 50 −5.176421 −50 −5.363923 A4 −1.79560E−03 −1.75404E−03 −7.72726E−03  2.46323E−03 −3.36582E−03 −2.20116E−02 −1.45174E−02 A6 2.67143E−04  2.32594E−05  1.79035E−04  1.22405E−04 6.30874E−04 1.02246E−03  9.01618E−04 A8 2.47676E−05 −9.54522E−05−1.39442E−05 −9.38681E−05 −5.96198E−05 2.85159E−04 −4.47595E−05 A103.74307E−05 −1.20664E−05 −5.48540E−06 −1.20263E−05 −8.31172E−069.23914E−06 −6.73215E−07 A12  2.94692E−06 −1.64479E−06 −3.82680E−07−1.67895E−07 −1.48358E−06   3.21116E−08 A14  9.92798E−07  1.15804E−07 2.53737E−07  7.24677E−08 3.09070E−07  1.29223E−09

An equation of the aspheric surfaces of the second embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the second embodiment based on Table 3 and Table4 are listed in the following table:

Second embodiment (Reference wavelength: 555 nm) ETP1 ETP2 ETP3 ETP4ETP5 ETP6 0.258 0.390 0.518  0.399 0.578 0.566 ETP7 ETL EBL EIN EIR PIR1.011 8.006 0.994  7.012 0.103 0.500 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.876 0.531 0.207  3.720 3.935 0.945 ETP1/TP1 ETP2/TP2 ETP3/TP3ETP4/TP4 ETP5/TP5 ETP6/TP6 0.534 0.871 2.252  0.641 0.809 0.594 ETP7/TP7BL EBL/BL SED SIN SED/SIN 2.084 1.393 0.7136 3.292 2.670 1.233 ED12 ED23ED34 ED45 ED56 ED67 0.532 0.338 0.087  0.486 1.131 0.719 ED12/IN12ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 10.643  0.393 0.754 9.711 0.948 1.782 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  0.8923 0.3619 0.7054  0.6866  0.2786  1.5634 |f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR|IN12/f IN67/f  1.9205  3.4208 2.9879  1.1449  0.0095  0.0768 |f1/f2||f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.4056  1.9490 1.1921  0.9328HOS InTL HOS/HOI InS/HOS ODT % TDT %  7.9980  6.6051 2.7466  0.9395 2.1897  0.5697 HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS  0.0000 0.0000 0.0000  2.2407  0.7695  0.2802 MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3MTFQ7 0.93  0.87  0.84  0.82  0.68  0.63  MTFI0 MTFI3 MTFI7 0.72  0.64 0.47 

The results of the equations of the second embodiment based on Table 3and Table 4 are listed in the following table:

Values related to the inflection points of the second embodiment HIF1110.57370 HIF111/HOI 0.14664 SGI111 0.002043 |SGI111|/(|SGI111| + TP1)0.00420 HIF112 1.81571 HIF112/HOI 0.46412 SGI112 −0.03506|SGI112|/(|SGI112| + TP1) 0.07818 HIF221 0.83215 HIF221/HOI 0.21271SGI221 0.10262 |SGI221|/(|SGI221| + TP2) 0.18653 HIF321 0.38758HIF321/HOI 0.09907 SGI321 0.000808 |SGI321|/(|SGI321| + TP3) 0.00349HIF411 1.87684 HIF411/HOI 0.47975 SGI411 −0.15107 |SGI411|/(|SGI411| +TP4) 0.3205 HIF421 1.85862 HIF421/HOI 0.47509 SGI421 −0.45039|SGI421|/(|SGI421| + TP4) 2.6195 HIF511 1.49057 HIF511/HOI 0.38101SGI511 0.135716 |SGI511|/(|SGI511| + TP5) 0.15968 HIF521 0.66203HIF521/HOI 0.16922 SGI521 0.007306 |SGI521|/(|SGI521| + TP5) 0.01012HIF721 0.96202 HIF721/HOI 0.24591 SGI721 0.221927 |SGI721|/(|SGI721| +TP7) 0.31386

Third Embodiment

As shown in FIG. 3A and FIG. 3B, an optical image capturing system ofthe third embodiment of the present invention includes, along an opticalaxis from an object side to an image side, an aperture 300, a first lens310, a second lens 320, a third lens 330, a fourth lens 340, a fifthlens 350, a sixth lens 360, a seventh lens 370, an infrared rays filter380, an image plane 390, and an image sensor 392. FIG. 3C shows amodulation transformation of the optical image capturing system 30 ofthe third embodiment of the present application in visible spectrum, andFIG. 3D shows a modulation transformation of the optical image capturingsystem 30 of the third embodiment of the present application in infraredspectrum.

The first lens 310 has positive refractive power and is made of plastic.An object-side surface 312 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 314 thereof, whichfaces the image side, is a concave aspheric surface. The image-sidesurface 314 has an inflection point.

The second lens 320 has negative refractive power and is made ofplastic. An object-side surface 322 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 324thereof, which faces the image side, is a concave aspheric surface.

The third lens 330 has positive refractive power and is made of plastic.An object-side surface 332 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 334 thereof, whichfaces the image side, is a convex aspheric surface. The object-sidesurface 332 has an inflection point.

The fourth lens 340 has positive refractive power and is made ofplastic. An object-side surface 342, which faces the object side, is aconvex aspheric surface, and an image-side surface 344, which faces theimage side, is a concave aspheric surface. The object-side surface 342and the image-side surface 344 both have an inflection point.

The fifth lens 350 has positive refractive power and is made of plastic.An object-side surface 352, which faces the object side, is a convexaspheric surface, and an image-side surface 354, which faces the imageside, is a convex aspheric surface. The object-side surface 352 has aninflection point, and the image-side surface 354 has two inflectionpoints.

The sixth lens 360 has negative refractive power and is made of plastic.An object-side surface 362, which faces the object side, is a concavesurface, and an image-side surface 364, which faces the image side, is aconvex surface. The object-side surface 352 has two inflection points,and the image-side surface 364 has an inflection point. Whereby, theincident angle of each view field entering the sixth lens 360 can beeffectively adjusted to improve aberration.

The seventh lens 370 has negative refractive power and is made ofplastic. An object-side surface 372, which faces the object side, is aconcave surface, and an image-side surface 374, which faces the imageside, is a concave surface. It may help to shorten the back focal lengthto keep small in size. In addition, the object-side surface 372 and theimage-side surface 374 both have an inflection point, which may reducean incident angle of the light of an off-axis field of view and correctthe aberration of the off-axis field of view.

The infrared rays filter 380 is made of glass and between the seventhlens 370 and the image plane 390. The infrared rays filter 390 gives nocontribution to the focal length of the system.

The optical image capturing system of the second embodiment satisfies|f2|+|f3|+|f4|+|f5|+|f6|=53.9016; |f1|+|f7|=9.0440; and|f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f7|, where f2 is a focal length of thesecond lens 320, f3 is a focal length of the third lens 330, f4 is afocal length of the fourth lens 340, f5 is a focal length of the fifthlens 350, f6 is a focal length of the sixth lens 360, and f7 is a focallength of the seventh lens 370.

The optical image capturing system of the second embodiment satisfiesTP6=0.3549 mm; and TP7=0.3521 mm, where TP6 is a thickness of the sixthlens 360 on the optical axis, TP7 is a thickness of the seventh lens 370on the optical axis.

In the third embodiment, the optical image capturing system of the thirdembodiment further satisfies ΣPP=44.4613 mm; and f1/ΣPP=0.1136, whereΣPP is a sum of the focal lengths of each positive lens. It is helpfulto share the positive refractive power of one single lens to otherpositive lenses to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the third embodiment furthersatisfies ΣNP=−18.4843 mm; and f2/ΣNP=0.2160, where ΣNP is a sum of thefocal lengths of each negative lens. It is helpful to share the negativerefractive power of the sixth lens 360 to the other negative lens.

The parameters of the lenses of the third embodiment are listed in Table5 and Table 6.

TABLE 5 f = 4.5724 mm; f/HEP = 2.0; HAF = 40 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object plane infinity 1 Aperture plane −0.33354 2 1^(st)lens 2.15728 0.600257 plastic 1.565 58 5.051 3 7.95102 0.580328 4 2^(nd)lens −4.57617 0.23 plastic 1.64 23.3 −6.067 5 26.12977 0.096215 6 3^(rd)lens 6.53034 0.536917 plastic 1.565 58 9.11 7 −23.5826 0.170061 8 4^(th)lens 2.58441 0.302053 plastic 1.65 21.4 26.419 9 2.9022 0.695806 105^(th) lens 17.31457 0.552455 plastic 1.584 40.5 3.881 11 −2.579450.526363 12 6^(th) lens −2.38582 0.354906 plastic 1.65 21.4 −8.424 13−4.47565 0.200051 14 7^(th) lens −3.19504 0.352119 plastic 1.565 58−3.993 15 7.98292 0.3 16 Infrared rays filter plane 0.2 BK_7 1.517 64.217 plane 0.136012 18 Image plane plane Reference wavelength (d-line):587.5 nm.

TABLE 6 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k−0.04929 18.763452 −3.146052 50 11.511117 −50 −8.387968 A4  3.99752E−03−2.65753E−03 −5.38259E−04 4.26480E−04 −1.12976E−02 −5.06681E−03−4.77471E−03 A6 −3.43914E−05 −5.82241E−03 −3.27978E−03 7.15484E−03−1.05403E−02 −8.71238E−03 −1.13776E−03 A8  3.06709E−03  3.81493E−03 2.08987E−03 −1.24014E−03  −1.67228E−03 −1.30073E−03 −3.79868E−05 A10−1.92345E−03 −3.58015E−03 −1.95683E−03 1.58148E−03  5.97801E−04−1.51067E−04 −5.94383E−05 A12 A14 Surface 9 10 11 12 13 14 15 k−10.084497 −21.814536 −1.977364 −0.189956 −0.012338 −0.236608 −49.681093A4 −9.45197E−03 −1.89927E−02 2.12693E−03 1.37038E−02  3.06638E−032.49475E−03 −4.17639E−03 A6 −2.52390E−04  1.40796E−03 8.09418E−04−1.01340E−03  −5.02083E−04 4.46483E−04 −8.87102E−04 A8 −6.25262E−05−6.62896E−04 1.73159E−04 8.89894E−05 −4.41194E−05 2.61112E−05 3.25266E−05 A10 −3.28088E−05 −5.77386E−05 6.40561E−06 4.68212E−05−9.48040E−07 1.39210E−06 −4.51219E−08 A12 −4.45309E−06 −1.80035E−06 4.24385E−06  3.32117E−07 2.96859E−08 −2.85078E−08 A14 −2.11574E−06−6.35294E−07  −6.87562E−07   7.72687E−08 −9.92819E−09   6.51010E−10

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment based on Table 5 and Table6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm) ETP1 ETP2 ETP3 ETP4 ETP5ETP6 0.338 0.423 0.411  0.275 0.311 0.477 ETP7 ETL EBL EIN EIR PIR 0.6155.499 0.577  4.922 0.241 0.300 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.895 0.579 0.804  2.850 2.929 0.973 ETP1/TP1 ETP2/TP2 ETP3/TP3ETP4/TP4 ETP5/TP5 ETP6/TP6 0.564 1.838 0.765  0.911 0.563 1.343 ETP7/TP7BL EBL/BL SED SIN SED/SIN 1.747 0.631 0.9144 2.072 2.269 0.913 ED12 ED23ED34 ED45 ED56 ED67 0.360 0.118 0.416  0.542 0.496 0.140 ED12/IN12ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 0.620 1.228 2.444 0.779 0.943 0.700 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  0.9063 0.7579 0.5024  0.1744  1.1809  0.5460 |f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR|IN12/f IN67/f  1.1463  2.8075 2.4067  1.1666  0.1272  0.0438 |f1/f2||f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.4056  1.9490 1.1921  0.9328HOS InTL HOS/HOI InS/HOS ODT % TDT %  0.8363  0.6629 5.1330  1.5558 0.8363  0.6629 HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS  0.0000 0.0000 0.0000  1.5970  0.4084  0.2740 MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3MTFQ7 0.86  0.85  0.8   0.66  0.63  0.54  MTFI0 MTFI3 MTFI7 0.69  0.67 0.55 

The results of the equations of the third embodiment based on Table 5and Table 6 are listed in the following table:

Values related to the inflection points of the third embodiment(Reference wavelength: 555 nm) HIF121 0.93144 HIF121/HOI 0.23817 SGI1210.05346 |SGI121|/(|SGI121| + TP1) 0.18861 HIF311 0.76938 HIF311/HOI0.19673 SGI311 0.04118 |SGI311|/(|SGI311| + TP3) 0.07123 HIF411 1.05305HIF411/HOI 0.26927 SGI411 0.16459 |SGI411|/(|SGI411| + TP4) 0.35271HIF421 0.97382 HIF421/HOI 0.24901 SGI421 0.12611 |SGI421|/(|SGI421| +TP4) 0.29454 HIF511 0.50607 HIF511/HOI 0.12940 SGI511 0.00614|SGI511|/(|SGI511| + TP5) 0.01099 HIF521 1.47052 HIF521/HOI 0.37602SGI521 −0.36841 |SGI521|/(|SGI521| + TP5) −2.00172 HIF522 2.16251HIF522/HOI 0.55296 SGI522 −0.61212 |SGI522|/(|SGI522| + TP5) 10.25959HIF611 1.91409 HIF611/HOI 0.48944 SGI611 −0.72246 |SGI611|/(|SGI611| +TP6) 1.96558 HIF612 2.33324 HIF612/HOI 0.59661 SGI612 −0.98967|SGI612|/(|SGI612| + TP6) 1.55912 HIF621 2.56378 HIF621/HOI 0.65556SGI621 −0.84232 |SGI621|/(|SGI621| + TP6) 1.72814 HIF711 2.11632HIF711/HOI 0.54115 SGI711 −0.66907 |SGI711|/(|SGI711| + TP7) 2.11097HIF721 0.91541 HIF721/HOI 0.23407 SGI721 0.04259 |SGI721|/(|SGI721| +TP7) 0.10790

Fourth Embodiment

As shown in FIG. 4A and FIG. 4B, an optical image capturing system 40 ofthe fourth embodiment of the present invention includes, along anoptical axis from an object side to an image side, an aperture 400, afirst lens 410, a second lens 420, a third lens 430, a fourth lens 440,a fifth lens 450, a sixth lens 460, a seventh lens 470, an infrared raysfilter 480, an image plane 490, and an image sensor 492. FIG. 4C shows amodulation transformation of the optical image capturing system 40 ofthe fourth embodiment of the present application in visible spectrum,and FIG. 4D shows a modulation transformation of the optical imagecapturing system 40 of the fourth embodiment of the present applicationin infrared spectrum.

The first lens 410 has positive refractive power and is made of plastic.An object-side surface 412 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 414 thereof, whichfaces the image side, is a concave aspheric surface. The image-sidesurface 414 has an inflection point.

The second lens 420 has negative refractive power and is made ofplastic. An object-side surface 422 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 424thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 422 has an inflection point.

The third lens 430 has positive refractive power and is made of plastic.An object-side surface 432 thereof, which faces the object side, is aconcave aspheric surface, and an image-side surface 434 thereof, whichfaces the image side, is a convex aspheric surface. The object-sidesurface 432 and the image-side surface 434 both have an inflectionpoint.

The fourth lens 440 has negative refractive power and is made ofplastic. An object-side surface 442, which faces the object side, is aconvex aspheric surface, and an image-side surface 444, which faces theimage side, is a concave aspheric surface. The object-side surface 442and the image-side surface 444 both have two inflection points.

The fifth lens 450 has negative refractive power and is made of plastic.An object-side surface 452, which faces the object side, is a convexaspheric surface, and an image-side surface 454, which faces the imageside, is a concave aspheric surface. The object-side surface 452 and theimage-side surface 454 both have an inflection point.

The sixth lens 460 has positive refractive power and is made of plastic.An object-side surface 462, which faces the object side, is a concavesurface, and an image-side surface 464, which faces the image side, is aconvex surface. Whereby, the incident angle of each view field enteringthe sixth lens 460 can be effectively adjusted to improve aberration.

The seventh lens 470 has negative refractive power and is made ofplastic. An object-side surface 472, which faces the object side, is aconcave surface, and an image-side surface 474, which faces the imageside, is a concave surface. It may help to shorten the back focal lengthto keep small in size. In addition, the object-side surface 472 has twoinflection points, and the image-side surface 474 has an inflectionpoint, which may reduce an incident angle of the light of an off-axisfield of view and correct the aberration of the off-axis field of view.

The infrared rays filter 480 is made of glass and between the seventhlens 470 and the image plane 490. The infrared rays filter 480 gives nocontribution to the focal length of the system.

The optical image capturing system of the second embodiment satisfies|f2|+|f3|+|f4|+|f5|+|f6|=472.6722 mm; |f1|+|f7|=7.1716 mm; and|f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f7|, where f2 is a focal length of thesecond lens 420, f3 is a focal length of the third lens 430, f4 is afocal length of the fourth lens 440, f5 is a focal length of the fifthlens 450, f6 is a focal length of the sixth lens 460, and f7 is a focallength of the seventh lens 470.

The optical image capturing system of the second embodiment satisfiesTP6=0.6737 mm; and TP7=0.4780 mm, where TP6 is a thickness of the sixthlens 460 on the optical axis, TP7 is a thickness of the seventh lens 470on the optical axis.

In the fourth embodiment, the optical image capturing system of thefourth embodiment further satisfies ΣPP=17.4258 mm; and f1/ΣPP=0.2264,where ΣPP is a sum of the focal lengths of each positive lens. It ishelpful to share the positive refractive power of one single lens toother positive lenses to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the fourth embodiment furthersatisfies ΣNP=−460.1883 mm; and f2/ΣNP=0.0069, where ΣNP is a sum of thefocal lengths of each negative lens. It is helpful to share the negativerefractive power of the sixth lens 460 to the other negative lens.

The parameters of the lenses of the fourth embodiment are listed inTable 7 and Table 8.

TABLE 7 f = 4.5913 mm; f/HEP = 2.0; HAF = 40 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object plane infinity 1 Aperture plane −0.33584 2 1^(st)lens 2.03058 0.590857 plastic 1.565 58 3.9446 3 20.4411 0.095186 42^(nd) lens 7.2165 0.23 plastic 1.607 26.6 −5.5279 5 2.2629 0.203986 63^(rd) lens −25.8857 0.366806 plastic 1.565 58 7.4947 7 −3.6578 0.05 84^(th) lens 4.82993 0.23 plastic 1.583 30.2 −417.085 9 4.65281 0.05 105^(th) lens 4.07572 0.2 plastic 1.607 26.6 −34.3868 11 3.34669 0.78767712 6^(th) lens −26.3844 0.673693 plastic 1.565 58 5.9865 13 −3.025690.986435 14 7^(th) lens −2.52419 0.477982 plastic 1.514 56.8 −3.1886 154.97372 0.2 16 Infrared rays filter plane 0.2 BK_7 1.517 64.2 17 plane0.168846 18 Image plane plane −0.01149 Reference wavelength (d-line):587.5 nm.

TABLE 8 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k−0.191857 25.98754 −50 −4.999511 −50 −9.392737 −42.359197 A4 6.14386E−03  2.32915E−02 −2.49806E−02  4.00683E−03 3.95467E−022.10900E−02 −1.42368E−02  A6 −3.31769E−03 −1.52625E−02 −7.01466E−03−3.20652E−05 2.03340E−02 2.43080E−02 1.78401E−04 A8  8.88009E−03 1.70942E−02  4.64711E−03 −3.92503E−03 7.65770E−03 9.32984E−035.05797E−04 A10 −3.39721E−03 −1.03920E−02 −3.12460E−03  2.24376E−03−3.18162E−03  1.06022E−03 7.36701E−04 A12 A14 Surface 9 10 11 12 13 1415 k −47.139839 −0.966022 −0.488959 50 −5.337175 −0.340205 −50 A4−2.47822E−02 −3.22998E−03 −2.50181E−03 −1.24457E−03 −8.76726E−03−2.93139E−02 −1.46251E−02 A6 −4.09121E−03 −1.22303E−03 −4.37624E−04−3.09245E−03 −1.02820E−03  4.22896E−03  5.73622E−04 A8  1.29767E−03−5.29555E−04 −5.19599E−04 −2.50603E−04  9.21696E−05  2.59804E−04−1.46156E−04 A10  1.83292E−03  8.63712E−05 −7.53064E−05  2.58380E−05 3.49235E−05  1.81189E−05  1.04247E−05 A12  1.13272E−04  2.62827E−05−8.54214E−07  4.63569E−06 −4.73923E−06  8.16570E−07 A14 −5.84875E−05−7.62110E−06 −5.71425E−06 −1.72555E−06 −4.15107E−08 −1.42180E−07

An equation of the aspheric surfaces of the fourth embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the fourth embodiment based on Table 7 and Table8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm) ETP1 ETP2 ETP3 ETP4ETP5 ETP6 0.280 0.455 0.238  0.209 0.240 0.503 ETP7 ETL EBL EIN EIR PIR0.851 5.132 0.482  4.649 0.133 0.200 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.906 0.597 0.667  2.775 2.769 1.002 ETP1/TP1 ETP2/TP2 ETP3/TP3ETP4/TP4 ETP5/TP5 ETP6/TP6 0.473 1.979 0.649  0.907 1.200 0.746 ETP7/TP7BL EBL/BL SED SIN SED/SIN 1.781 0.557 0.8654 1.875 2.173 0.863 ED12 ED23ED34 ED45 ED56 ED67 0.063 0.060 0.158  0.146 0.562 0.886 ED12/IN12ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 0.661 0.293 3.153 2.919 0.714 0.898 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  1.1613 0.8291 0.6112  0.0110  0.1333  0.7652 |f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR|IN12/f IN67/f  1.4366  2.0707 2.8769  0.7198  0.0208  0.2154 |f1/f2||f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.7139  0.7372 2.9828  2.1737HOS InTL HOS/HOI InS/HOS ODT % TDT %  5.4995  4.9426 1.4065  0.9389 2.0042  0.7448 HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS  0.0000 0.0000 0.0000  1.3134  0.3359  0.2388 MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3MTFQ7 0.9  0.87  0.8   0.78  0.68  0.49  MTFI0 MTFI3 MTFI7 0.84  0.77 0.74 

The results of the equations of the fourth embodiment based on Table 7and Table 8 are listed in the following table:

Values related to the inflection points of the fourth embodiment(Reference wavelength: 555 nm) HIF121 0.95846 HIF121/HOI 0.24506 SGI1210.03601 |SGI121|/(|SGI121| + TP1) 0.13538 HIF211 0.53133 HIF211/HOI0.13585 SGI211 0.01628 |SGI211|/(|SGI211| + TP2) 0.06612 HIF311 0.27108HIF311/HOI 0.06931 SGI311 −0.00120 |SGI311|/(|SGI311| + TP3) 0.00327HIF321 0.59253 HIF321/HOI 0.15150 SGI321 −0.04181 |SGI321|/(|SGI321| +TP3) 0.12864 HIF411 0.71831 HIF411/HOI 0.18366 SGI411 0.04111|SGI411|/(|SGI411| + TP4) 0.15164 HIF412 1.05895 HIF412/HOI 0.27075SGI412 0.06954 |SGI412|/(|SGI412| + TP4) 0.23216 HIF421 0.55698HIF421/HOI 0.14241 SGI421 0.02664 |SGI421|/(|SGI421| + TP4) 0.10380HIF422 1.11259 HIF422/HOI 0.28446 SGI422 0.05415 |SGI422|/(|SGI422| +TP4) 0.19056 HIF511 1.26333 HIF511/HOI 0.32300 SGI511 0.18054|SGI511|/(|SGI511| + TP5) 0.47444 HIF521 1.35764 HIF521/HOI 0.34712SGI521 0.26306 |SGI521|/(|SGI521| + TP5) 0.56809 HIF711 1.84187HIF711/HOI 0.47092 SGI711 −0.88157 |SGI711|/(|SGI711| + TP7) 2.18435HIF712 2.55238 HIF712/HOI 0.65258 SGI712 −1.42068 |SGI712|/(|SGI712| +TP7) 1.50704 HIF721 0.67378 HIF721/HOI 0.17227 SGI721 0.03541|SGI721|/(|SGI721| + TP7) 0.06898

Fifth Embodiment

As shown in FIG. 5A and FIG. 5B, an optical image capturing system ofthe fifth embodiment of the present invention includes, along an opticalaxis from an object side to an image side, an aperture 500, a first lens510, a second lens 520, a third lens 530, a fourth lens 540, a fifthlens 550, a sixth lens 560, a seventh lens 570, an infrared rays filter580, an image plane 590, and an image sensor 592. FIG. 5C shows amodulation transformation of the optical image capturing system 50 ofthe fifth embodiment of the present application in visible spectrum, andFIG. 5D shows a modulation transformation of the optical image capturingsystem 50 of the fifth embodiment of the present application in infraredspectrum.

The first lens 510 has positive refractive power and is made of plastic.An object-side surface 512, which faces the object side, is a convexaspheric surface, and an image-side surface 514, which faces the imageside, is a concave aspheric surface.

The second lens 520 has negative refractive power and is made ofplastic. An object-side surface 522 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 524thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 522 has two inflection points.

The third lens 530 has positive refractive power and is made of plastic.An object-side surface 532, which faces the object side, is a concaveaspheric surface, and an image-side surface 534, which faces the imageside, is a convex aspheric surface. The object-side surface 532 and theimage-side surface 534 both have an inflection point.

The fourth lens 540 has negative refractive power and is made ofplastic. An object-side surface 542, which faces the object side, is aconvex aspheric surface, and an image-side surface 544, which faces theimage side, is a concave aspheric surface. The object-side surface 542and the image-side surface 544 both have two inflection points.

The fifth lens 550 has positive refractive power and is made of plastic.An object-side surface 552, which faces the object side, is a convexaspheric surface, and an image-side surface 554, which faces the imageside, is a concave aspheric surface. The object-side surface 552 and theimage-side surface 554 both have an inflection point.

The sixth lens 560 has positive refractive power and is made of plastic.An object-side surface 562, which faces the object side, is a convexsurface, and an image-side surface 564, which faces the image side, is aconvex surface. The object-side surface 562 has an inflection point, andthe image-side surface 564 has two inflection points. Whereby, theincident angle of each view field entering the sixth lens 560 can beeffectively adjusted to improve aberration.

The seventh lens 570 has negative refractive power and is made ofplastic. An object-side surface 572, which faces the object side, is aconcave surface, and an image-side surface 574, which faces the imageside, is a concave surface. It may help to shorten the back focal lengthto keep small in size. In addition, the object-side surface 572 has twoinflection points, and the image-side surface 574 has an inflectionpoint, which may reduce an incident angle of the light of an off-axisfield of view and correct the aberration of the off-axis field of view.

The infrared rays filter 580 is made of glass and between the seventhlens 570 and the image plane 590. The infrared rays filter 580 gives nocontribution to the focal length of the system.

The optical image capturing system of the second embodiment satisfies|f2|+|f3|+|f4|+|f5|+|f6|=116.2046 mm; |f1|+|f7|=6.0808 mm; and|f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f7|, where f2 is a focal length of thesecond lens 520, f3 is a focal length of the third lens 530, f4 is afocal length of the fourth lens 540, f5 is a focal length of the fifthlens 550, f6 is a focal length of the sixth lens 560, and f7 is a focallength of the seventh lens 570.

The optical image capturing system of the second embodiment satisfiesTP6=0.5304 mm; and TP7=0.4476 mm, where TP6 is a thickness of the sixthlens 560 on the optical axis, TP7 is a thickness of the seventh lens 570on the optical axis.

In the fifth embodiment, the optical image capturing system of the fifthembodiment further satisfies ΣPP=81.4756 mm; and f1/ΣPP=0.0413, whereΣPP is a sum of the focal lengths of each positive lens. It is helpfulto share the positive refractive power of one single lens to otherpositive lenses to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the fifth embodiment furthersatisfies ΣNP=−41.2341 mm; and f7/ΣP=0.0658, where ΣNP is a sum of thefocal lengths of each negative lens. It is helpful to share the negativerefractive power of one single lens to the other negative lens.

The parameters of the lenses of the fifth embodiment are listed in Table9 and Table 10.

TABLE 9 f = 4.5869 mm; f/HEP = 2.4; HAF = 36 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object plane infinity 1 Aperture plane −0.30194 2 1^(st)lens 1.67885 0.502569 plastic 1.565 58 3.3859 3 12.71698 0.05 4 2^(nd)lens 5.38574 0.23 plastic 1.65 21.4 −7.1855 5 2.44192 0.21546 6 3^(rd)lens −3.31318 0.267964 plastic 1.514 56.8 16.1775 7 −2.43029 0.05 84^(th) lens 4.17348 0.23 plastic 1.607 26.6 −31.321 9 3.34488 0.18252 105^(th) lens 7.24726 0.204591 plastic 1.65 21.4 56.358 11 8.964910.811146 12 6^(th) lens 57.40191 0.530414 plastic 1.514 56.8 6.4721 13−3.5003 0.628252 14 7^(th) lens −2.47689 0.447587 plastic 1.514 56.8−2.7276 15 3.38613 0.2 16 Infrared rays filter plane 0.2 BK_7 1.517 64.217 plane 0.2799 18 Image plane plane −0.00199 Reference wavelength(d-line): 587.5 nm.

TABLE 10 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k−0.19498 25.965245 −24.834588 −4.835407 −11.460294 −14.363279 −50 A48.68431E−03  2.06667E−02 −5.42623E−03 1.02033E−02  9.75389E−023.11015E−02 −6.55395E−02 A6 2.05199E−03 −1.55116E−02 −4.57020E−031.60935E−02 −5.86134E−03 8.04270E−02 −9.07258E−03 A8 5.46113E−03 1.50417E−02 −1.68343E−02 −2.02109E−02   1.02915E−01 1.02785E−02−6.61190E−03 A10 −1.77602E−03  −6.27543E−03  1.30266E−02 1.81509E−02−4.33460E−02 1.56694E−02  1.72045E−02 A12 A14 Surface 9 10 11 12 13 1415 k −31.574844 9.635245 8.366551 −50 −22.578376 −0.421387 −50 A4−7.29455E−02  8.86110E−04 −9.10165E−04  3.54135E−02 3.89278E−02−2.57528E−02  −3.30133E−02 A6 −5.96674E−03 −1.23165E−02  5.36757E−03−2.75135E−02 −1.33720E−02  4.52341E−03  4.61348E−03 A8 −2.29490E−02−6.94666E−03 −2.66396E−03  5.09075E−03 3.37191E−04 2.25092E−04−8.64463E−04 A10  2.11657E−02  7.53306E−04 −1.43452E−03 −9.81173E−048.08761E−05 8.52708E−06  3.11316E−05 A12  3.22496E−03  8.75091E−04 5.64122E−05 5.48106E−06 −5.52365E−06   4.27694E−06 A14 −1.37062E−03−1.59640E−04 −2.87791E−05 −2.51294E−06  1.10684E−07 −6.34271E−07

An equation of the aspheric surfaces of the fifth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the fifth embodiment based on Table 9 and Table10 are listed in the following table:

Fifth embodiment (Reference wavelength: 555 nm) ETP1 ETP2 ETP3 ETP4 ETP5ETP6 0.250 0.351 0.231  0.237 0.203 0.434 ETP7 ETL EBL EIN EIR PIR 0.7124.726 0.619  4.108 0.141 0.200 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.869 0.589 0.704  2.418 2.413 1.002 ETP1/TP1 ETP2/TP2 ETP3/TP3ETP4/TP4 ETP5/TP5 ETP6/TP6 0.497 1.527 0.862  1.030 0.994 0.818 ETP7/TP7BL EBL/BL SED SIN SED/SIN 1.590 0.677 0.9143 1.690 1.937 0.872 ED12 ED23ED34 ED45 ED56 ED67 0.062 0.036 0.104  0.209 0.777 0.500 ED12/IN12ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 1.248 0.168 2.084 1.146 0.958 0.796 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  1.3582 0.6455 0.2844  0.1476  0.0824  0.7106 |f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR|IN12/f IN67/f  1.6863  2.2988 2.6162  0.8787  0.0109  0.1374 |f1/f2||f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.4753  0.4405 2.4025  2.0283HOS InTL HOS/HOI InS/HOS ODT % TDT %  5.0279  4.3505 1.2859  0.9399 2.1286  1.1371 HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS  1.0956 0.0000 0.0000  1.0598  0.2711  0.2108 MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3MTFQ7 0.88  0.87  0.8   0.77  0.73  0.55  MTFI0 MTFI3 MTFI7 0.83  0.8 0.74 

The results of the equations of the fifth embodiment based on Table 9and Table 10 are listed in the following table:

Values related to the inflection points of the fifth embodiment(Reference wavelength: 555 nm) HIF211 0.70612 HIF211/HOI 0.18056 SGI2110.03977 |SGI211|/(|SGI211| + TP2) 0.14742 HIF212 0.95319 HIF212/HOI0.24374 SGI212 0.06135 |SGI212|/(|SGI212| + TP2) 0.21058 HIF311 0.42650HIF311/HOI 0.10906 SGI311 −0.02306 |SGI311|/(|SGI311| + TP3) 0.09415HIF321 0.47716 HIF321/HOI 0.12201 SGI321 −0.03940 |SGI321|/(|SGI321| +TP3) −0.17236 HIF411 0.40381 HIF411/HOI 0.10326 SGI411 0.01591|SGI411|/(|SGI411| + TP4) 0.06471 HIF412 0.97728 HIF412/HOI 0.24990SGI412 0.01885 |SGI412|/(|SGI412| + TP4) 0.07576 HIF421 0.42045HIF421/HOI 0.10751 SGI421 0.02150 |SGI421|/(|SGI421| + TP4) 0.08548HIF422 1.05585 HIF422/HOI 0.26999 SGI422 0.01274 |SGI422|/(|SGI422| +TP4) 0.05249 HIF511 0.75981 HIF511/HOI 0.19429 SGI511 0.03836|SGI511|/(|SGI511| + TP5) 0.15789 HIF521 1.13304 HIF521/HOI 0.28973SGI521 0.07512 |SGI521|/(|SGI521| + TP5) 0.26856 HIF611 0.81831HIF611/HOI 0.20925 SGI611 0.01433 |SGI611|/(|SGI611| + TP6) 0.02631HIF621 0.64223 HIF621/HOI 0.16422 SGI621 −0.04523 |SGI621|/(|SGI621| +TP6) −0.09322 HIF622 1.06285 HIF622/HOI 0.27178 SGI622 −0.08716|SGI622|/(|SGI622| + TP6) −0.19662 HIF711 1.79916 HIF711/HOI 0.46006SGI711 −0.80740 |SGI711|/(|SGI711| + TP7) 2.24395 HIF712 2.54267HIF712/HOI 0.65018 SGI712 −1.32216 |SGI712|/(|SGI712| + TP7) 1.51178HIF721 0.51270 HIF721/HOI 0.13110 SGI721 0.02939 |SGI721|/(|SGI721| +TP7) 0.06162

Sixth Embodiment

As shown in FIG. 6A and FIG. 6B, an optical image capturing system ofthe sixth embodiment of the present invention includes, along an opticalaxis from an object side to an image side, an aperture 600, a first lens610, a second lens 620, a third lens 630, a fourth lens 640, a fifthlens 650, a sixth lens 660, a seventh lens 670, an infrared rays filter680, an image plane 690, and an image sensor 692. FIG. 6C shows amodulation transformation of the optical image capturing system 60 ofthe sixth embodiment of the present application in visible spectrum, andFIG. 6D shows a modulation transformation of the optical image capturingsystem 60 of the sixth embodiment of the present application in infraredspectrum.

The first lens 610 has negative refractive power and is made of plastic.An object-side surface 612, which faces the object side, is a concaveaspheric surface, and an image-side surface 614, which faces the imageside, is a convex aspheric surface. The object-side surface 612 and theimage-side surface 614 both have an inflection point.

The second lens 620 has positive refractive power and is made ofplastic. An object-side surface 622 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 624thereof, which faces the image side, is a convex aspheric surface.

The third lens 630 has negative refractive power and is made of plastic.An object-side surface 632, which faces the object side, is a concaveaspheric surface, and an image-side surface 634, which faces the imageside, is a convex aspheric surface.

The fourth lens 640 has positive refractive power and is made ofplastic. An object-side surface 642, which faces the object side, is aconvex aspheric surface, and an image-side surface 644, which faces theimage side, is a convex aspheric surface. The object-side surface 642has an inflection point.

The fifth lens 650 has negative refractive power and is made of plastic.An object-side surface 652, which faces the object side, is a convexaspheric surface, and an image-side surface 654, which faces the imageside, is a concave aspheric surface. The object-side surface 652 has twoinflection points.

The sixth lens 660 has positive refractive power and is made of plastic.An object-side surface 662, which faces the object side, is a convexsurface, and an image-side surface 664, which faces the image side, is aconvex surface. The image-side surface 664 has an inflection point.Whereby, the incident angle of each view field entering the sixth lens660 can be effectively adjusted to improve aberration.

The seventh lens 670 has negative refractive power and is made ofplastic. An object-side surface 672, which faces the object side, is aconcave surface, and an image-side surface 674, which faces the imageside, is a convex surface. It may help to shorten the back focal lengthto keep small in size. In addition, it may reduce an incident angle ofthe light of an off-axis field of view and correct the aberration of theoff-axis field of view.

The infrared rays filter 680 is made of glass and between the seventhlens 670 and the image plane 690. The infrared rays filter 680 gives nocontribution to the focal length of the system.

The optical image capturing system of the second embodiment satisfies|f2|+|f3|+|f4|+|f5|+|f6|=86.3084 mm; and |f1|+|f7|=246.7079 mm, where f2is a focal length of the second lens 620, f3 is a focal length of thethird lens 630, f4 is a focal length of the fourth lens 640, f5 is afocal length of the fifth lens 650, f6 is a focal length of the sixthlens 660, and f7 is a focal length of the seventh lens 670.

The optical image capturing system of the second embodiment satisfiesTP6=1.3445 mm; and TP7=0.2466 mm, where TP6 is a thickness of the sixthlens 660 on the optical axis, TP7 is a thickness of the seventh lens 670on the optical axis.

The optical image capturing system of the sixth embodiment furthersatisfies ΣPP=22.6888 mm; and f1/ΣPP=0.3982, where ΣPP is a sum of thefocal lengths of each positive lens. It is helpful to share the positiverefractive power of one single lens to other positive lenses to avoidthe significant aberration caused by the incident rays.

The optical image capturing system of the sixth embodiment furthersatisfies ΣNP=−310.3275 mm; and f7/ΣNP=0.0181, where ΣNP is a sum of thefocal lengths of each negative lens. It is helpful to share the negativerefractive power of one single lens to the other negative lens to avoidthe significant aberration caused by the incident rays.

The parameters of the lenses of the sixth embodiment are listed in Table11 and Table 12.

TABLE 11 f = 4.5959 mm; f/HEP = 1.8; HAF = 40 deg Radius of curvatureThickness Refractive Abbe Focal length Surface (mm) (mm) Material indexnumber (mm) 0 Object plane plane 1 1^(st) lens −7.63591 0.511837 plastic1.607 26.6 −241.082 2 −8.26026 0.563369 3 Aperture plane 0.272998 42^(nd) lens −4.10286 1.24021 plastic 1.565 58 9.0344 5 −2.52281 0.0576426 3^(rd) lens −2.43813 0.416132 plastic 1.65 21.4 −57.2659 7 −2.784440.05 8 4^(th) lens 4.24762 2.367965 plastic 1.565 58 6.0701 9 −14.22460.05 10 5^(th) lens 20.25813 0.2 plastic 1.65 21.4 −6.3537 11 3.417240.527712 12 6^(th) lens 9.26516 1.344486 plastic 1.565 58 7.5843 13−7.5548 1.851024 14 7^(th) lens −2.69118 0.246626 plastic 1.607 26.6−5.6257 15 −13.139 0.15 16 Infrared rays filter plane 0.15 BK_7 1.51764.2 17 plane −0.01229 18 Image plane plane 0.012294 Referencewavelength (d-line): 587.5 nm.

TABLE 12 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 k−33.312145 −50 −0.332792 0.043896 −0.093202 0.285506 −0.380699 A41.26272E−02 2.03915E−02  4.18954E−03  3.10064E−03  2.07007E−04 1.94950E−03 −1.32802E−03 A6 1.29612E−03 1.44214E−03 −4.86569E−03−1.05746E−03  1.64521E−03  1.34900E−03  1.29019E−04 A8 −3.52645E−04 −3.02866E−05   7.11820E−04  1.31428E−04 −5.65034E−05 −1.42647E−05 1.07233E−06 A10 3.52569E−05 1.35388E−05 −3.28977E−04 −1.63946E−04−1.51193E−04 −1.86006E−05 −2.06880E−06 A12 A14 Surface 9 10 11 12 13 1415 k 10.93499 19.290896 −0.0723 3.233085 −11.778797 0.194169 −50 A4−1.67996E−03  1.12998E−03 −1.31585E−03 1.93655E−03 2.30335E−032.04449E−03  1.59526E−03 A6 −1.31982E−04 −1.90833E−04  1.67690E−043.82824E−04 6.90805E−04 8.69537E−04 −1.68389E−03 A8 −3.19390E−06−3.15177E−05  4.13457E−05 1.75911E−05 1.48710E−05 −2.69239E−04  4.04352E−05 A10  7.41371E−07 −2.34346E−06 −1.30149E−06 1.94706E−06−5.99541E−06  2.89014E−05  9.78632E−07 A12  6.20400E−08 −1.68471E−071.15194E−07 −5.61580E−07  1.71797E−06 −7.92755E−08 A14  6.93550E−08−1.77237E−08 1.45320E−08 1.94347E−07 −7.23500E−07  −1.35502E−08

An equation of the aspheric surfaces of the sixth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the sixth embodiment based on Table 11 and Table12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm) ETP1 ETP2 ETP3 ETP4 ETP5ETP6 0.545 1.106 0.464  2.113 0.401 1.157 ETP7 ETL EBL EIN EIR PIR 0.50610.050  0.356  9.694 0.209 0.150 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.965 0.649 1.392  6.291 6.327 0.994 ETP1/TP1 ETP2/TP2 ETP3/TP3ETP4/TP4 ETP5/TP5 ETP6/TP6 1.065 0.892 1.114  0.892 2.004 0.860 ETP7/TP7BL EBL/BL SED SIN SED/SIN 2.052 0.298 1.1946 3.403 3.373 1.009 ED12 ED23ED34 ED45 ED56 ED67 0.646 0.050 0.546  0.157 0.380 1.624 ED12/IN12ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 0.772 0.876 10.912 3.131 0.721 0.877 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  0.0191 0.5101 0.0805  0.7587  0.7287  0.6073 |f/f7| ΣPPR ΣNPR ΣPPR/|ΣNPR|IN12/f IN67/f  0.8217  2.1138 1.4122  1.4968  0.1822  0.4031 |f1/f2||f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6 26.6512  0.1578 1.0871  1.5602HOS InTL HOS/HOI InS/HOS ODT % TDT %  9.9977  9.7000 2.5570  0.8925 1.3875  1.0553 HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS  0.0000 2.0012 0.0000  0.0000  0.0000  0.0000 MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3MTFQ7 0.92  0.88  0.87  0.63  0.41  0.39  MTFI0 MTFI3 MTFI7 0.89  0.85 0.75 

The results of the equations of the sixth embodiment based on Table 11and Table 12 are listed in the following table:

Values related to the inflection points of the sixth embodiment(Reference wavelength: 555 nm) HIF111 0.72939 HIF111/HOI 0.18649 SGI111−0.02885 |SGI111|/(|SGI111| + TP1) −0.05973 HIF121 0.58079 HIF121/HOI0.14849 SGI121 −0.01694 |SGI121|/(|SGI121| + TP1) −0.01385 HIF4112.65312 HIF411/HOI 0.67834 SGI411 0.83186 |SGI411|/(|SGI411| + TP4)0.25997 HIF511 1.72480 HIF511/HOI 0.44099 SGI511 0.07849|SGI511|/(|SGI511| + TP5) 0.28185 HIF512 2.48375 HIF512/HOI 0.63504SGI512 0.12469 |SGI512|/(|SGI512| + TP5) 0.38403 HIF621 1.23611HIF621/HOI 0.31604 SGI621 −0.08685 |SGI621|/(|SGI621| + TP6) −0.06906

It must be pointed out that the embodiments described above are onlysome embodiments of the present invention. All equivalent structureswhich employ the concepts disclosed in this specification and theappended claims should fall within the scope of the present invention.

What is claimed is:
 1. An optical image capturing system, in order alongan optical axis from an object side to an image side, comprising: afirst lens having refractive power; a second lens having refractivepower; a third lens having refractive power; a fourth lens havingrefractive power; a fifth lens having refractive power; a sixth lenshaving refractive power; a seventh lens having refractive power; and animage plane; wherein the optical image capturing system consists of theseven lenses with refractive power; a maximum height for image formationperpendicular to the optical axis on the image plane is denoted as HOI;at least one lens among the first to the seventh lenses has positiverefractive power; each lens of the first to the seventh lenses has anobject-side surface, which faces the object side, and an image-sidesurface, which faces the image side; wherein the optical image capturingsystem satisfies:1.2≦f/HEP≦10.0; and0.5≦SETP/STP<1; where f1, f2 f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HOS is a distance in parallel withthe optical axis between a point on an object-side surface of the firstlens where the optical axis passes through and a point on the imageplane where the optical axis passes through; ETP1, ETP2, ETP3, ETP4,ETP5, ETP6, and ETP7 are respectively a thickness at the height of ½ HEPof the first lens, the second lens, the third lens, the fourth lens, thefifth lens, the sixth lens, and the seventh lens; SETP is a sum of theaforementioned ETP1 to ETP7; TP1, TP2, TP3, TP4, TP5, TP6, and TP7 arerespectively a thickness of the first lens, the second lens, the thirdlens, the fourth lens, the fifth lens, the sixth lens, and the seventhlens on the optical axis; STP is a sum of the aforementioned TP1 to TP7.2. The optical image capturing system of claim 1, wherein the opticalimage capturing system further satisfies:0.2≦EIN/ETL<1; where ETL is a distance in parallel with the optical axisbetween a coordinate point at a height of ½ HEP on the object-sidesurface of the first lens and the image plane; EIN is a distance inparallel with the optical axis between the coordinate point at theheight of ½ HEP on the object-side surface of the first lens and acoordinate point at a height of ½ HEP on the image-side surface of theseventh lens.
 3. The optical image capturing system of claim 2, whereinthe optical image capturing system further satisfies:0.3≦SETP/EIN<1.
 4. The optical image capturing system of claim 1,further comprising a filtering component provided between the seventhlens and the image plane, wherein the optical image capturing systemfurther satisfies:0.1≦EIR/PIR≦1.1; where EIR is a horizontal distance in parallel with theoptical axis between the coordinate point at the height of ½ HEP on theimage-side surface of the seventh lens and the filtering component; PIRis a horizontal distance in parallel with the optical axis between apoint on the image-side surface of the seventh lens where the opticalaxis passes through and the filtering component.
 5. The optical imagecapturing system of claim 1, wherein at least one lens among the firstto the seventh lenses has at least one inflection point on either theobject-side surface or the image-side surface thereof.
 6. The opticalimage capturing system of claim 1, wherein the optical image capturingsystem further satisfies:MTFE0≧0.2;MTFE3≧0.01; andMTFE7≧0.01; where MTFE0, MTFE3, and MTFE7 are respectively a value ofmodulation transfer function of visible light in a spatial frequency of55 cycles/mm at the optical axis, 0.3 HOI, and 0.7 HOI on an imageplane.
 7. The optical image capturing system of claim 1, wherein theoptical image capturing system further satisfies:0.4≦|tan(HAF)|≦6.0; where HAF is a half of a view angle of the opticalimage capturing system.
 8. The optical image capturing system of claim1, wherein the optical image capturing system further satisfies:0.1≦EBL/BL≦1.1; where EBL is a horizontal distance in parallel with theoptical axis between a coordinate point at the height of ½ HEP on theimage-side surface of the seventh lens and image surface; BL is ahorizontal distance in parallel with the optical axis between the pointon the image-side surface of the seventh lens where the optical axispasses through and the image plane.
 9. The optical image capturingsystem of claim 1, further comprising an aperture and an image sensor,wherein the image sensor is provided on the image plane; the opticalimage capturing system further satisfies:0.1≦InS/HOS≦1.1; and0≦HIF/HOI≦0.9; where InS is a distance in parallel with the optical axisbetween the aperture and the image plane.
 10. An optical image capturingsystem, in order along an optical axis from an object side to an imageside, comprising: a first lens having positive refractive power; asecond lens having refractive power; a third lens having refractivepower; a fourth lens having refractive power; a fifth lens havingrefractive power; a sixth lens having refractive power; a seventh lenshaving refractive power; and an image plane; wherein the optical imagecapturing system consists of the seven lenses with refractive power; amaximum height for image formation perpendicular to the optical axis onthe image plane is denoted as HOI; at least one lens among the second tothe seventh lenses has positive refractive power; each lens among thefirst to the seventh lenses has an object-side surface, which faces theobject side, and an image-side surface, which faces the image side;wherein the optical image capturing system satisfies:1.2≦f/HEP≦10.0;HOI>3.0 mm; and0.2≦EIN/ETL<1; where f1, f2 f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HOS is a distance in parallel withthe optical axis between a point on an object-side surface of the firstlens where the optical axis passes through and a point on the imageplane where the optical axis passes through; ETL is a distance inparallel with the optical axis between a coordinate point at a height of½ HEP on the object-side surface of the first lens and the image plane;EIN is a distance in parallel with the optical axis between thecoordinate point at the height of ½ HEP on the object-side surface ofthe first lens and a coordinate point at a height of ½ HEP on theimage-side surface of the seventh lens.
 11. The optical image capturingsystem of claim 10, wherein the optical image capturing system furthersatisfies:0<ED67/IN67≦50; where ED67 is a horizontal distance between the sixthlens and the seventh lens at the height of ½ HEP; IN67 is a horizontaldistance between the sixth lens and the seventh lens on the opticalaxis.
 12. The optical image capturing system of claim 10, wherein theoptical image capturing system further satisfies:0<ED12/IN12<15; where ED12 is a horizontal distance between the firstlens and the second lens at the height of ½ HEP; IN12 is a horizontaldistance between the first lens and the second lens on the optical axis.13. The optical image capturing system of claim 10, wherein the opticalimage capturing system further satisfies:0<ETP2/TP2≦3; where ETP2 is a thickness of the second lens at the heightof ½ HEP in parallel with the optical axis; TP2 is a thickness of thesecond lens on the optical axis.
 14. The optical image capturing systemof claim 10, wherein the optical image capturing system furthersatisfies:0<ETP6/TP6≦3; where ETP6 is a thickness of the sixth lens at the heightof ½ HEP in parallel with the optical axis; TP6 is a thickness of thesixth lens on the optical axis.
 15. The optical image capturing systemof claim 10, wherein the optical image capturing system furthersatisfies:0<ETP7/TP7≦5; where ETP7 is a thickness of the seventh lens at theheight of ½ HEP in parallel with the optical axis; TP7 is a thickness ofthe seventh lens on the optical axis.
 16. The optical image capturingsystem of claim 10, wherein the optical image capturing system furthersatisfies:0<IN12/f≦60; where IN12 is a distance on the optical axis between thefirst lens and the second lens.
 17. The optical image capturing systemof claim 10, wherein the optical image capturing system furthersatisfies:MTFI0≧0.01;MTFI3≧0.01; andMTFI7≧0.01; where MTFI0, MTFI3, and MTFI7 are respectively values ofmodulation transfer function for an infrared of wavelength of 850 nm ina spatial frequency of 55 cycles/mm at the optical axis, 0.3 HOI, and0.7 HOI on the image plane.
 18. The optical image capturing system ofclaim 10, wherein the optical image capturing system further satisfies:MTFQ0≧0.2;MTFQ3≧0.01; andMTFQ7≧0.01 where HOI is a maximum height for image formationperpendicular to the optical axis on the image plane; MTFQ0, MTFQ3, andMTFQ7 are respectively values of modulation transfer function of visiblelight in a spatial frequency of 110 cycles/mm at the optical axis, 0.3HOI, and 0.7 HOI on the image plane.
 19. The optical image capturingsystem of claim 10, wherein at least one lens among the first lens tothe seventh lens is a light filter, which is capable of filtering outlight of wavelengths shorter than 500 nm.
 20. An optical image capturingsystem, in order along an optical axis from an object side to an imageside, comprising: a first lens having positive refractive power; asecond lens having negative refractive power; a third lens havingrefractive power; a fourth lens having refractive power; a fifth lenshaving refractive power; a sixth lens having refractive power; a seventhlens having refractive power; and an image plane; wherein the opticalimage capturing system consists of the seventh lenses having refractivepower; a maximum height for image formation perpendicular to the opticalaxis on the image plane is denoted as HOI; at least one surface of atleast one lens among the first lens to the seventh lenses has at leasttwo inflection points thereon; each lens of the first to the seventhlenses has an object-side surface, which faces the object side, and animage-side surface, which faces the image side; the object-side surfaceand the image-side surface of at least one lens among the first lens tothe seventh lens are both aspheric surfaces; wherein the optical imagecapturing system satisfies:1.2≦f/HEP≦3.5;0.4≦|tan(HAF)|≦6.0;HOI>3.0 mm; and0.2≦EIN/ETL<1; where f1, f2 f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HAF is a half of a view angle of theoptical image capturing system; HOS is a distance between a point on anobject-side surface of the first lens where the optical axis passesthrough and a point on the image plane where the optical axis passesthrough; ETL is a distance in parallel with the optical axis between acoordinate point at a height of ½ HEP on the object-side surface of thefirst lens and the image plane; EIN is a distance in parallel with theoptical axis between the coordinate point at the height of ½ HEP on theobject-side surface of the first lens and a coordinate point at a heightof ½ HEP on the image-side surface of the seventh lens.
 21. The opticalimage capturing system of claim 20, wherein the optical image capturingsystem further satisfies:0.1≦EBL/BL≦1.1; where EBL is a horizontal distance in parallel with theoptical axis between a coordinate point at the height of ½ HEP on theimage-side surface of the seventh lens and image surface; BL is ahorizontal distance in parallel with the optical axis between the pointon the image-side surface of the seventh lens where the optical axispasses through and the image plane.
 22. The optical image capturingsystem of claim 21, wherein the optical image capturing system furthersatisfies:0≦ED67/IN67≦50; where ED67 is a horizontal distance between the sixthlens and the seventh lens at the height of ½ HEP; IN67 is a horizontaldistance between the sixth lens and the seventh lens on the opticalaxis.
 23. The optical image capturing system of claim 20, wherein theoptical image capturing system further satisfies:0<IN67/f≦5.0; where IN67 is a horizontal distance between the sixth lensand the seventh lens on the optical axis.
 24. The optical imagecapturing system of claim 23, wherein the optical image capturing systemfurther satisfies:0 mm<HOS≦50 mm.
 25. The optical image capturing system of claim 23,further comprising an aperture, an image sensor, and a driving module,wherein the image sensor is disposed on the image plane; the drivingmodule is coupled with the lenses to move the lenses; the optical imagecapturing system further satisfies:0.1≦InS/HOS≦1.1; where InS is a distance in parallel with the opticalaxis between the aperture and the image plane.